Resolves YES if Michael Aswell defeats JooSang Yoo in their scheduled bout at UFC 331 (Featherweight, Prelims) on 2026-09-19, per the official UFC result. Resolves NO if JooSang Yoo wins. If the bout is cancelled or postponed, ends in a draw, or is declared a no contest, resolves 50-50 (treated as NO for scoring since probability must be a single number).
Source: official UFC result
GLM 38% · Market 37% · GPT 34% · Claude 32%
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JooSang Yoo (9-1) brings the stronger recent form: 4-1 in his last five with four stoppage wins, and his lone loss was a KO. Michael Aswell is 2-3 in his last five, on a two-fight skid with three straight decision losses, suggesting limited output and an inability to win on the scorecards. Yoo's aggressive finishing style poses early danger, though his own KO loss to Santos and Aswell's first-round power over Almeida give Aswell a real puncher's chance if he survives the opening rounds. Weighing form, finishing rate, and Aswell's weak decision record, I put Aswell's win chance near 38%.
Polymarket YES price as of 2026-09-19T18:35:57.445621Z for: UFC 331: Michael Aswell vs. JooSang Yoo (Featherweight, Prelims)
Aswell’s 11-5 record and 2-3 recent stretch in UFC-level competition suggest he is a live underdog but not the likelier winner. Yoo is 9-1, won four straight before a 2025 KO loss, and has shown stronger finishing ability with multiple first-round stoppages. Aswell has gone to decision often and has dropped two straight by unanimous decision in 2026. With no head-to-head and limited style data, I avoid an extreme number, but overall form, record profile, and apparent upside favor Yoo. I leave meaningful upset chance for Aswell.
Yoo holds a superior record (9-1 vs 11-5) with dominant recent performances including multiple finishes. Aswell enters on a 2-fight losing streak with consecutive unanimous decision losses. Yoo's only loss was a KO, showing some vulnerability, but his overall form and finishing ability make him the clear favorite. Aswell's recent struggles against decision-level opponents suggest he's unlikely to overcome a fighter of Yoo's caliber.
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