Mario Piazzon (12-1) enters his second Dana White’s Contender Series appearance with a deeper professional record and recent training ties to UFC heavyweight Jailton Almeida, following a unanimous decision win over André Vieira in March 2026 after rebounding from a 2025 upset loss. Guilherme Uriel (7-2) returns after a first-round TKO of Leonardo Fraga at LFA 229 in March, seeking redemption from his 2025 DWCS knockout loss to Josh Hokit. The Brazilian heavyweights, set for August 25 at the UFC Apex, showed clear bad blood at weigh-ins with a heated face-off and reported social media friction, while Piazzon (238 lbs) and Uriel (241.5 lbs) both made weight. Uriel holds a slight size edge at 6'1", but Piazzon’s higher fight volume and finishing rate in recent bouts shape the matchup dynamics for a three-round contest.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMario Piazzon – Guilherme Uriel
Moneyline
$516 Vol.
Totals
$18 Vol.
Go the Distance?
$0 Vol.
Fight won by KO/TKO?
$0 Vol.
Piazzon to win by KO/TKO?
$0 Vol.
Uriel to win by KO/TKO?
$0 Vol.
Fight won by submission?
$0 Vol.
It will resolve to "Guilherme Uriel" if Guilherme Uriel is officially declared the winner.
If the fight is declared a draw or technical draw, ruled a No Contest, not scored, canceled, or postponed beyond September 8, 2026, this market will resolve "50-50."
The resolution source for this market will be official information from the UFC.
Market Opened: Aug 12, 2026, 6:00 PM ET
Resolution Source
https://www.ufc.com/eventsResolver
0x65070BE91...Mario Piazzon – Guilherme Uriel
Moneyline
$516 Vol.
Totals
$18 Vol.
Go the Distance?
$0 Vol.
Fight won by KO/TKO?
$0 Vol.
Piazzon to win by KO/TKO?
$0 Vol.
Uriel to win by KO/TKO?
$0 Vol.
Fight won by submission?
$0 Vol.
It will resolve to "Guilherme Uriel" if Guilherme Uriel is officially declared the winner.
If the fight is declared a draw or technical draw, ruled a No Contest, not scored, canceled, or postponed beyond September 8, 2026, this market will resolve "50-50."
The resolution source for this market will be official information from the UFC.
Market Opened: Aug 12, 2026, 6:00 PM ET
Resolution Source
https://www.ufc.com/eventsResolver
0x65070BE91...Mario Piazzon (12-1) enters his second Dana White’s Contender Series appearance with a deeper professional record and recent training ties to UFC heavyweight Jailton Almeida, following a unanimous decision win over André Vieira in March 2026 after rebounding from a 2025 upset loss. Guilherme Uriel (7-2) returns after a first-round TKO of Leonardo Fraga at LFA 229 in March, seeking redemption from his 2025 DWCS knockout loss to Josh Hokit. The Brazilian heavyweights, set for August 25 at the UFC Apex, showed clear bad blood at weigh-ins with a heated face-off and reported social media friction, while Piazzon (238 lbs) and Uriel (241.5 lbs) both made weight. Uriel holds a slight size edge at 6'1", but Piazzon’s higher fight volume and finishing rate in recent bouts shape the matchup dynamics for a three-round contest.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedBeware of external links.
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