Resolution criteria on PolyGram: This market will resolve to "Joaquin Buckley" if Joaquin Buckley is officially declared the winner of the fight against Sean Brady at UFC 328: Chimaev vs. Strickland, scheduled for May 9, 2026. It will resolve to "Sean Brady" if Sean Brady 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 May 23, 2026, this market will resolve "50-50." The resolution source for this market will be official information from the UFC.
PolyGram is an on-chain prediction market where you trade YES or NO outcome shares with real USDC on Polygon. For this market, buy YES if you believe the event will happen, or NO if you think it won't. Your maximum loss is your stake — winning shares pay $1.00 each at resolution. Unlike sportsbooks, there is no house edge: prices are set by supply and demand from other traders and reflect the crowd's real-time probability.
Market outcomes
| O/U 0.5 Rounds | 100% YES | 0% NO |
| O/U 1.5 Rounds | 100% YES | 0% NO |
| Fight to Go the Distance? | 100% YES | 0% NO |
| Buckley to win by KO/TKO? | 0% YES | 100% NO |
| Brady to win by KO/TKO? | 0% YES | 100% NO |
| Fight won by submission? | 0% YES | 100% NO |
| Joaquin Buckley vs. Sean Brady | 0% YES | 100% NO |
| Fight won by KO/TKO? | 0% YES | 100% NO |
Joaquin Buckley and Sean Brady are scheduled to compete in a welterweight bout on the main card of UFC 328, headlined by Chimaev versus Strickland on 9 May 2026. The current order book on Polymarket reflects a 75% implied probability for Buckley, indicating market participants favour him as the stronger prospect in this matchup. The settlement window closes on 10 May, allowing approximately 24 hours post-event for official UFC confirmation and resolution.
Buckley has demonstrated significant upside potential within the welterweight division, whilst Brady represents a more established competitor with consistent ranking credentials. Historical welterweight matchups at this tier typically see the favoured fighter prevail roughly 70–80% of the time when implied probabilities fall within this range, though individual fighter trajectories and recent form substantially influence outcomes. Brady's experience and technical wrestling base have historically provided him competitive advantages, yet Buckley's recent performances have shifted market sentiment noticeably in his favour.
Traders should monitor official UFC weigh-in confirmations scheduled for 8 May, as any last-minute withdrawals or fighter health concerns would trigger immediate repricing. The broader UFC 328 card composition and any late injury replacements on the main event could influence betting patterns across the entire card. Recent MMA media coverage from outlets such as ESPN MMA and The Athletic will likely provide updated fighter conditioning reports and injury status in the days preceding the event, serving as key catalysts for probability shifts before settlement.
This market settles from the official outcome published at https://www.ufc.com/events. A proposer submits the final result to the UMA optimistic oracle on Polygon; the two-hour dispute window closes and payouts clear in USDC.
The mechanics for trading "UFC 328: Joaquin Buckley vs. Sean Brady (Welterweight, Main Card)" are the same as any other PolyGram event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.
$1.7M in lifetime turnover and $0 of resting liquidity puts this market in the top 2% by volume for ufc contracts on PolyGram. Order-book depth is thin — large orders may need to be split across the book or executed as limit orders.
Last 24 hours alone saw $1.6M in turnover, well above the lifetime daily-average for this market — a clear sign of news catalysing trader activity right now.
The market has been open for under a month — fresh enough that information asymmetry remains a real factor.
Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.
Resolution is sourced from https://www.ufc.com/events. Settlement is executed by the UMA optimistic oracle on Polygon, with a 2-hour dispute window before payouts clear.
This prediction market is scheduled to close on 10 May 2026. After the resolving event occurs, settlement typically clears within 24 hours once the UMA optimistic oracle confirms the outcome. All payouts are in USDC on the Polygon network.
To trade on this prediction market, create a free PolyGram account at polygram.ink, deposit USDC via Polygon, and place a YES or NO order on the outcome you believe in. You can learn more on our how-it-works page. Your maximum loss is limited to your stake — there is no leverage or margin.
When the outcome is determined, winning YES shares pay out $1.00 each in USDC, while losing shares pay $0. Settlement is handled by the UMA optimistic oracle on Polygon — a proposer submits the result, a two-hour dispute window opens, and if uncontested, payouts are distributed automatically. You can withdraw your winnings to any Polygon wallet.
Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.
Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.
Explore more prediction market odds and trading opportunities on PolyGram: