Gauthier Onclin holds a clear edge over Vitaliy Sachko in this US Open qualifying first-round match on outdoor hard courts, backed by stronger recent hard-court results and a 2-0 head-to-head lead. Ranked near No. 158-169, the Belgian has posted a 65% win rate over the past year with multiple Challenger victories on hard surfaces in the lead-up, including straight-set and three-set wins in Cancun. Sachko, ranked around No. 188-191, sits at roughly 48% wins in the same span and has competed primarily on clay, showing inconsistency in recent ATP and Challenger outings. Onclin’s superior return game and experience against similar-ranked opponents on hard align with trader consensus favoring him at implied probabilities near 70%. Both players enter without reported injuries, though Sachko’s clay-to-hard transition and lower hard-court volume this season represent the primary variables.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated12h 33m 37s
Combos
This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM ET.
This market will resolve to 'Gauthier Onclin' if Gauthier Onclin advances against Vitaliy Sachko.
This market will resolve to 'Vitaliy Sachko' if Vitaliy Sachko advances against Gauthier Onclin.
If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 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 ATP Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 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 Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM ET.
This market will resolve to “Onclin” if Gauthier Onclin wins the first set. It will resolve to “Sachko” if Vitaliy Sachko 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.
Resolution will be based on official Grand Slam match statistics.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 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 Grand Slam statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM ET.
This market will resolve to "Onclin" if Gauthier Onclin wins by 2 or more sets than Vitaliy Sachko, based on the final completed score. Otherwise, it will resolve to "Sachko."
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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.
Resolution will be based on official Grand Slam results.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 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 Grand Slam statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM ET.
This market will resolve to “Onclin” if Gauthier Onclin wins set 2. It will resolve to “Sachko” if Vitaliy Sachko 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.
Resolution will be based on official Grand Slam match statistics.This market refers to the tennis match between Vitaliy Sachko and Gauthier Onclin in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM ET.
This market will resolve to "Sachko" if Vitaliy Sachko wins by 2 or more sets than Gauthier Onclin, based on the final completed score. Otherwise, it will resolve to "Onclin."
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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.
Resolution will be based on official Grand Slam results.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 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 Grand Slam statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 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 Grand Slam statistics; however, a consensus of credible reporting may also be used.This market will resolve to "Onclin" if Gauthier Onclin wins 3.5 or more total games than Vitaliy Sachko in the upcoming tennis match, scheduled for August 25, 2026 at 11:00AM ET. Otherwise, this market will resolve to "Sachko".
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 ATP Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.
Resolution will be based on official Grand Slam results.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.
Resolution will be based on official Grand Slam results.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.
Resolution will be based on official Grand Slam results.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.
Resolution will be based on official Grand Slam results.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.
Resolution will be based on official Grand Slam results.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.
Resolution will be based on official Grand Slam results.Gauthier Onclin holds a clear edge over Vitaliy Sachko in this US Open qualifying first-round match on outdoor hard courts, backed by stronger recent hard-court results and a 2-0 head-to-head lead. Ranked near No. 158-169, the Belgian has posted a 65% win rate over the past year with multiple Challenger victories on hard surfaces in the lead-up, including straight-set and three-set wins in Cancun. Sachko, ranked around No. 188-191, sits at roughly 48% wins in the same span and has competed primarily on clay, showing inconsistency in recent ATP and Challenger outings. Onclin’s superior return game and experience against similar-ranked opponents on hard align with trader consensus favoring him at implied probabilities near 70%. Both players enter without reported injuries, though Sachko’s clay-to-hard transition and lower hard-court volume this season represent the primary variables.
This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM ET.
This market will resolve to 'Gauthier Onclin' if Gauthier Onclin advances against Vitaliy Sachko.
This market will resolve to 'Vitaliy Sachko' if Vitaliy Sachko advances against Gauthier Onclin.
If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 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 ATP Tour. A consensus of credible reporting may also be used.
This market will resolve to 'Gauthier Onclin' if Gauthier Onclin advances against Vitaliy Sachko.
This market will resolve to 'Vitaliy Sachko' if Vitaliy Sachko advances against Gauthier Onclin.
If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 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 ATP Tour. A consensus of credible reporting may also be used.
Market Opened: Aug 23, 2026, 7:06 PM ET
Volume
$723End Date
Sep 1, 2026Market Opened
Aug 23, 2026, 7:06 PM ETResolution Source
https://www.atptour.com/en/scores/currentResolver
0x65070BE91...12h 33m 37s
Combos
This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM ET.
This market will resolve to 'Gauthier Onclin' if Gauthier Onclin advances against Vitaliy Sachko.
This market will resolve to 'Vitaliy Sachko' if Vitaliy Sachko advances against Gauthier Onclin.
If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 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 ATP Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 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 Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM ET.
This market will resolve to “Onclin” if Gauthier Onclin wins the first set. It will resolve to “Sachko” if Vitaliy Sachko 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.
Resolution will be based on official Grand Slam match statistics.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 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 Grand Slam statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM ET.
This market will resolve to "Onclin" if Gauthier Onclin wins by 2 or more sets than Vitaliy Sachko, based on the final completed score. Otherwise, it will resolve to "Sachko."
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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.
Resolution will be based on official Grand Slam results.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 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 Grand Slam statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM ET.
This market will resolve to “Onclin” if Gauthier Onclin wins set 2. It will resolve to “Sachko” if Vitaliy Sachko 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.
Resolution will be based on official Grand Slam match statistics.This market refers to the tennis match between Vitaliy Sachko and Gauthier Onclin in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM ET.
This market will resolve to "Sachko" if Vitaliy Sachko wins by 2 or more sets than Gauthier Onclin, based on the final completed score. Otherwise, it will resolve to "Onclin."
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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.
Resolution will be based on official Grand Slam results.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 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 Grand Slam statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 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 Grand Slam statistics; however, a consensus of credible reporting may also be used.This market will resolve to "Onclin" if Gauthier Onclin wins 3.5 or more total games than Vitaliy Sachko in the upcoming tennis match, scheduled for August 25, 2026 at 11:00AM ET. Otherwise, this market will resolve to "Sachko".
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 ATP Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.
Resolution will be based on official Grand Slam results.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.
Resolution will be based on official Grand Slam results.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.
Resolution will be based on official Grand Slam results.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.
Resolution will be based on official Grand Slam results.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.
Resolution will be based on official Grand Slam results.This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM 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 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.
Resolution will be based on official Grand Slam results.Gauthier Onclin holds a clear edge over Vitaliy Sachko in this US Open qualifying first-round match on outdoor hard courts, backed by stronger recent hard-court results and a 2-0 head-to-head lead. Ranked near No. 158-169, the Belgian has posted a 65% win rate over the past year with multiple Challenger victories on hard surfaces in the lead-up, including straight-set and three-set wins in Cancun. Sachko, ranked around No. 188-191, sits at roughly 48% wins in the same span and has competed primarily on clay, showing inconsistency in recent ATP and Challenger outings. Onclin’s superior return game and experience against similar-ranked opponents on hard align with trader consensus favoring him at implied probabilities near 70%. Both players enter without reported injuries, though Sachko’s clay-to-hard transition and lower hard-court volume this season represent the primary variables.
This market refers to the tennis match between Gauthier Onclin and Vitaliy Sachko in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM ET.
This market will resolve to 'Gauthier Onclin' if Gauthier Onclin advances against Vitaliy Sachko.
This market will resolve to 'Vitaliy Sachko' if Vitaliy Sachko advances against Gauthier Onclin.
If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 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 ATP Tour. A consensus of credible reporting may also be used.
This market will resolve to 'Gauthier Onclin' if Gauthier Onclin advances against Vitaliy Sachko.
This market will resolve to 'Vitaliy Sachko' if Vitaliy Sachko advances against Gauthier Onclin.
If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 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 ATP Tour. A consensus of credible reporting may also be used.
Market Opened: Aug 23, 2026, 7:06 PM ET
Volume
$723End Date
Sep 1, 2026Market Opened
Aug 23, 2026, 7:06 PM ETResolution Source
https://www.atptour.com/en/scores/currentResolver
0x65070BE91...Gauthier Onclin holds a clear edge over Vitaliy Sachko in this US Open qualifying first-round match on outdoor hard courts, backed by stronger recent hard-court results and a 2-0 head-to-head lead. Ranked near No. 158-169, the Belgian has posted a 65% win rate over the past year with multiple Challenger victories on hard surfaces in the lead-up, including straight-set and three-set wins in Cancun. Sachko, ranked around No. 188-191, sits at roughly 48% wins in the same span and has competed primarily on clay, showing inconsistency in recent ATP and Challenger outings. Onclin’s superior return game and experience against similar-ranked opponents on hard align with trader consensus favoring him at implied probabilities near 70%. Both players enter without reported injuries, though Sachko’s clay-to-hard transition and lower hard-court volume this season represent the primary variables.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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