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Sports·WTA Tour

Janice Tjen – Dayana Yastremska

Polymarket
FINAL
J. TjenJ. Tjen
2677
D. YastremskaD. Yastremska
6365
$227.39K Vol.Polymarket
NEW

Moneyline

$225K Vol.

Game Spread

$0 Vol.

This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to 'Janice Tjen' if Janice Tjen advances against Dayana Yastremska. This market will resolve to 'Dayana Yastremska' if Dayana Yastremska advances against Janice Tjen. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Yes" if all games and sets required to determine a match winner under governing body or event organizer rules are played to completion through normal play. Otherwise, if the match is not completed for any reason, it will resolve to "No." If a forfeit of any kind occurs, including but not limited to a walkover or retirement, this market will resolve "No." If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to "No." The primary resolution source for this market is the official statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 2 hours after the event's conclusion, a consensus of credible reporting may be used instead.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of sets completed equals or exceeds 3. Otherwise, it will resolve to "Under." A super tie breaker is considered as one (1) set. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 7, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official WTA statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 22. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 7, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official WTA statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 23. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 7, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official WTA statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 24. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 7, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official WTA statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Tjen" if Janice Tjen wins by 2 or more sets than Dayana Yastremska, based on the final completed score. Otherwise, it will resolve to "Yastremska." If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins, or a result has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official WTA results.This market will resolve to "Tjen" if Janice Tjen wins 1.5 or more total games than Dayana Yastremska in the upcoming tennis match, scheduled for August 24, 2026 at 12:00PM ET. Otherwise, this market will resolve to "Yastremska". Games won will be counted across all sets played in the match. A set decided by a tiebreak will count as one game for the winner of that tiebreak, and a match tiebreak played in place of a final set will also count as one game for its winner. If the match is canceled (not played at all), or is delayed beyond 14 days from the scheduled date without completion at 11:59 PM ET, this market will resolve 50-50. If the match begins but is not completed due to retirement, default, or disqualification, this market will resolve 50-50, unless the outcome of this market has already been unconditionally determined by the completed portion of play. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to “Tjen” if Janice Tjen wins the first set. It will resolve to “Yastremska” if Dayana Yastremska wins the first set. If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled (not played at all) or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50. Resolution will be based on official WTA match statistics.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to “Tjen” if Janice Tjen wins set 2. It will resolve to “Yastremska” if Dayana Yastremska wins set 2. If the match begins but set 2 is not completed with a winner determined (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled (not played at all) or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50. Resolution will be based on official WTA match statistics.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 9. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official WTA results.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official WTA results.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 10. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official WTA results.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 10. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official WTA results.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 11. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official WTA results.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 11. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official WTA results.Janice Tjen enters the Monterrey Open first round as the seventh seed and world No. 35, holding a clear edge over Dayana Yastremska due to superior recent ranking, hard-court results, and a 1-0 head-to-head lead that includes a straight-sets win in Dubai earlier in 2026. Tjen arrives off a third-round loss in Cincinnati but has posted stronger overall hard-court numbers this season despite a mixed 2026 record. Yastremska, a former top-20 player now ranked around No. 112 and entering on a wildcard, shows inconsistent form with limited success against top-50 opponents and a sub-.500 win rate in 2026. Both players have struggled for consistent momentum on the outdoor hard courts that define this WTA 500 event, though Tjen’s higher ranking and stylistic edge on the surface underpin the market’s implied probability favoring her advancement.

This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET.

This market will resolve to 'Janice Tjen' if Janice Tjen advances against Dayana Yastremska.

This market will resolve to 'Dayana Yastremska' if Dayana Yastremska advances against Janice Tjen.

If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50.

If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.

If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.

The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.
Volume
$227,621
End Date
Aug 31, 2026
Market Opened
Aug 23, 2026, 12:14 AM ET

Resolution Source

https://www.wtatennis.com/scores

Resolver

0x65070BE91...
This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to 'Janice Tjen' if Janice Tjen advances against Dayana Yastremska. This market will resolve to 'Dayana Yastremska' if Dayana Yastremska advances against Janice Tjen. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.

Beware of external links.

Frequently Asked Questions

The “D. Yastremska vs. J. Tjen” market on Polymarket lets you trade on the outcome of the WTA Tour game between the Dayana Yastremska and the Janice Tjen, scheduled for August 24, 2026 at 6:30 PM ET. The primary market is the moneyline — which team will win the game — where J. Tjen is currently priced at 100¢ (100% implied probability) and D. Yastremska at 0¢ (0%). Beyond the moneyline, sports markets on Polymarket may feature spreads, totals (over/under), and player props, giving you multiple ways to trade on this game. Prices reflect real-time crowd-sourced probabilities. Shares in the correct outcome pay out $1 each when the market resolves after the game ends.

As of now, the “D. Yastremska vs. J. Tjen” market has generated $227.6K in total trading volume across all market types (moneyline, spreads, totals, and player props). This volume reflects active engagement from the Polymarket trading community, and a deeper pool of traders generally means more informative, reliable odds. You can track live price movements and trade on any market directly on this page.

To trade on “D. Yastremska vs. J. Tjen,” start by choosing the market type you want to trade: Moneyline (which team wins), Spreads (margin of victory), Totals (combined score over/under), or Player Props (individual player stat lines). Each market shows the current price for each side — for example, the moneyline shows YASTREM at 0¢ and TJEN at 100¢. Select the side you want to trade, choose Buy to take a position or Sell to close an existing one, enter your amount, and click Trade. If your chosen side is correct when the game ends and the market resolves, your shares pay out $1 each. If it’s incorrect, they pay out $0. You can also sell your shares at any time before the game ends to lock in a profit or cut a loss.

The current moneyline odds for “D. Yastremska vs. J. Tjen” show Janice Tjen at 100¢ (100% implied probability) and Dayana Yastremska at 0¢ (0%). All odds update in real-time as traders buy and sell shares, reflecting the latest collective view of how this game will play out. Check back frequently or bookmark this page to follow how the odds shift as game time approaches.

The “D. Yastremska vs. J. Tjen” market resolves based on the official final score of the WTA Tour game as reported by WTA Tour’s official results, including overtime if applicable. Moneyline markets resolve to the team that wins the game. Spread markets resolve based on the final margin of victory relative to the posted line. Totals (over/under) markets resolve based on the combined final score of both teams. Player prop markets resolve based on official box score statistics. If the game is postponed or canceled, the market resolution rules (available in the Rules section on this page) specify how that scenario is handled. We recommend reviewing the full resolution criteria before trading.
Sports·WTA Tour

Janice Tjen – Dayana Yastremska

Polymarket
FINAL
J. TjenJ. Tjen
2677
D. YastremskaD. Yastremska
6365
$227.39K Vol.Polymarket
NEW

Moneyline

$225K Vol.

Game Spread

$0 Vol.

This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to 'Janice Tjen' if Janice Tjen advances against Dayana Yastremska. This market will resolve to 'Dayana Yastremska' if Dayana Yastremska advances against Janice Tjen. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Yes" if all games and sets required to determine a match winner under governing body or event organizer rules are played to completion through normal play. Otherwise, if the match is not completed for any reason, it will resolve to "No." If a forfeit of any kind occurs, including but not limited to a walkover or retirement, this market will resolve "No." If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to "No." The primary resolution source for this market is the official statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 2 hours after the event's conclusion, a consensus of credible reporting may be used instead.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of sets completed equals or exceeds 3. Otherwise, it will resolve to "Under." A super tie breaker is considered as one (1) set. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 7, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official WTA statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 22. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 7, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official WTA statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 23. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 7, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official WTA statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 24. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 7, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official WTA statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Tjen" if Janice Tjen wins by 2 or more sets than Dayana Yastremska, based on the final completed score. Otherwise, it will resolve to "Yastremska." If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins, or a result has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official WTA results.This market will resolve to "Tjen" if Janice Tjen wins 1.5 or more total games than Dayana Yastremska in the upcoming tennis match, scheduled for August 24, 2026 at 12:00PM ET. Otherwise, this market will resolve to "Yastremska". Games won will be counted across all sets played in the match. A set decided by a tiebreak will count as one game for the winner of that tiebreak, and a match tiebreak played in place of a final set will also count as one game for its winner. If the match is canceled (not played at all), or is delayed beyond 14 days from the scheduled date without completion at 11:59 PM ET, this market will resolve 50-50. If the match begins but is not completed due to retirement, default, or disqualification, this market will resolve 50-50, unless the outcome of this market has already been unconditionally determined by the completed portion of play. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to “Tjen” if Janice Tjen wins the first set. It will resolve to “Yastremska” if Dayana Yastremska wins the first set. If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled (not played at all) or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50. Resolution will be based on official WTA match statistics.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to “Tjen” if Janice Tjen wins set 2. It will resolve to “Yastremska” if Dayana Yastremska wins set 2. If the match begins but set 2 is not completed with a winner determined (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled (not played at all) or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50. Resolution will be based on official WTA match statistics.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 9. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official WTA results.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official WTA results.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 10. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official WTA results.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 10. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official WTA results.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 11. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official WTA results.This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 11. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official WTA results.Janice Tjen enters the Monterrey Open first round as the seventh seed and world No. 35, holding a clear edge over Dayana Yastremska due to superior recent ranking, hard-court results, and a 1-0 head-to-head lead that includes a straight-sets win in Dubai earlier in 2026. Tjen arrives off a third-round loss in Cincinnati but has posted stronger overall hard-court numbers this season despite a mixed 2026 record. Yastremska, a former top-20 player now ranked around No. 112 and entering on a wildcard, shows inconsistent form with limited success against top-50 opponents and a sub-.500 win rate in 2026. Both players have struggled for consistent momentum on the outdoor hard courts that define this WTA 500 event, though Tjen’s higher ranking and stylistic edge on the surface underpin the market’s implied probability favoring her advancement.

This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET.

This market will resolve to 'Janice Tjen' if Janice Tjen advances against Dayana Yastremska.

This market will resolve to 'Dayana Yastremska' if Dayana Yastremska advances against Janice Tjen.

If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50.

If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.

If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.

The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.
Volume
$227,621
End Date
Aug 31, 2026
Market Opened
Aug 23, 2026, 12:14 AM ET

Resolution Source

https://www.wtatennis.com/scores

Resolver

0x65070BE91...
This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to 'Janice Tjen' if Janice Tjen advances against Dayana Yastremska. This market will resolve to 'Dayana Yastremska' if Dayana Yastremska advances against Janice Tjen. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.

Beware of external links.

Frequently Asked Questions

The “D. Yastremska vs. J. Tjen” market on Polymarket lets you trade on the outcome of the WTA Tour game between the Dayana Yastremska and the Janice Tjen, scheduled for August 24, 2026 at 6:30 PM ET. The primary market is the moneyline — which team will win the game — where J. Tjen is currently priced at 100¢ (100% implied probability) and D. Yastremska at 0¢ (0%). Beyond the moneyline, sports markets on Polymarket may feature spreads, totals (over/under), and player props, giving you multiple ways to trade on this game. Prices reflect real-time crowd-sourced probabilities. Shares in the correct outcome pay out $1 each when the market resolves after the game ends.

As of now, the “D. Yastremska vs. J. Tjen” market has generated $227.6K in total trading volume across all market types (moneyline, spreads, totals, and player props). This volume reflects active engagement from the Polymarket trading community, and a deeper pool of traders generally means more informative, reliable odds. You can track live price movements and trade on any market directly on this page.

To trade on “D. Yastremska vs. J. Tjen,” start by choosing the market type you want to trade: Moneyline (which team wins), Spreads (margin of victory), Totals (combined score over/under), or Player Props (individual player stat lines). Each market shows the current price for each side — for example, the moneyline shows YASTREM at 0¢ and TJEN at 100¢. Select the side you want to trade, choose Buy to take a position or Sell to close an existing one, enter your amount, and click Trade. If your chosen side is correct when the game ends and the market resolves, your shares pay out $1 each. If it’s incorrect, they pay out $0. You can also sell your shares at any time before the game ends to lock in a profit or cut a loss.

The current moneyline odds for “D. Yastremska vs. J. Tjen” show Janice Tjen at 100¢ (100% implied probability) and Dayana Yastremska at 0¢ (0%). All odds update in real-time as traders buy and sell shares, reflecting the latest collective view of how this game will play out. Check back frequently or bookmark this page to follow how the odds shift as game time approaches.

The “D. Yastremska vs. J. Tjen” market resolves based on the official final score of the WTA Tour game as reported by WTA Tour’s official results, including overtime if applicable. Moneyline markets resolve to the team that wins the game. Spread markets resolve based on the final margin of victory relative to the posted line. Totals (over/under) markets resolve based on the combined final score of both teams. Player prop markets resolve based on official box score statistics. If the game is postponed or canceled, the market resolution rules (available in the Rules section on this page) specify how that scenario is handled. We recommend reviewing the full resolution criteria before trading.