Trade the outcome below — no house edge, instant USDC settlement on Polygon
Resolution criteria on PolyGram: This market will resolve to "Massey" if Jack Massey is officially declared the winner of the fight against Chev Clarke at Zuffa Boxing 7: Billam-Smith vs. Rozicki, scheduled for June 6, 2026. It will resolve to "Clarke" if Chev Clarke 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 June 20, 2026, this market will resolve "50-50." The resolution source for this market will be official information from https://www.ufc.com/.
Sports outcome markets settle within hours of game-end via the UMA optimistic oracle, with the YES/NO line refreshing in real time on every meaningful in-game event. Current odds favour the NO side at 49%, making this a coinflip market with 5 days to resolution, well inside the window where catalysts move price most, backed by $3K of resting liquidity.
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
| Massey vs. Clarke | 49% YES | 52% NO |
Jack Massey faces Chev Clarke in a cruiserweight bout at Zuffa Boxing 7 on 6 June 2026, with the fight card headlined by Billam-Smith versus Rozicki. The market currently reflects a 49% implied probability for Massey victory, suggesting near-parity in trader assessment. Settlement depends on official UFC.com confirmation of the result; draws, technical draws, no contests, or cancellations beyond 20 June trigger a 50-50 resolution.
The current probability sits at the midpoint of the order book, indicating genuine uncertainty amongst traders rather than consensus backing either fighter. Comparable cruiserweight matchups in professional boxing show that when both competitors carry similar records and limited high-profile opposition, markets typically gravitate toward even odds absent fresh information. The 49% figure suggests modest backing for Clarke or slight uncertainty about Massey's credentials at this weight class.
Traders should monitor fight announcements regarding fighter withdrawals, weight-cut complications, or late replacements in the weeks preceding the event. Injury reports or training camp updates from credible boxing media outlets could shift the probability meaningfully. The settlement window closes shortly after the scheduled bout time, leaving minimal window for delayed official confirmation. Any postponement beyond 20 June automatically resolves the market at 50-50, creating a hard deadline that removes tail-risk scenarios from pricing considerations.
This market settles from the official outcome published at https://www.ufc.com/. A proposer submits the final result to the UMA optimistic oracle on Polygon; the two-hour dispute window closes and payouts clear in USDC.
For this market, the resolution date is 7 June 2026. A UMA proposer can submit the outcome from that moment; the two-hour dispute window closes at , and assuming no counter-claim is staked, winning USDC clears to trader balances by approximately .
If a dispute is filed inside the two-hour window, the outcome escalates to UMA token-holder voting, which extends settlement by roughly 48 hours. Because this market resolves from a publicly verifiable feed (https://www.ufc.com/), the probability of dispute is materially lower than the overall 0.5% PolyGram baseline — most disputes occur on markets with ambiguous wording or non-public resolution sources.
Sports markets on PolyGram historically have the fastest payout cycle — over 94% clear within four hours of game-end, with the remainder gated by overtime, weather, or referee review. Funds clear directly to your in-app USDC balance on Polygon. Withdrawals are non-custodial: send to any address you control, typical confirmation under 30 seconds, gas paid in USDC if you'd rather not hold MATIC.
Minimum order size on PolyGram is $1.00, with no maximum cap aside from available book depth. Orders route into Polymarket's on-chain CLOB on Polygon; the matching engine pairs YES buyers with NO buyers atomically — every executed trade is settled on-chain with no counterparty risk. For "Zuffa Boxing 7: Massey vs. Clarke (Cruiserweight, Main)", sports markets tend to see the tightest 1-2¢ spreads in the final hour before tip-off, widening rapidly the moment of any in-game news.
The trade ticket includes a slippage box (default 2%, configurable 0.1%-10%) that caps the worst-case entry price. At the current YES price of 49%, a $50 stake on YES buys roughly 102 shares; if YES resolves true those shares pay out at $1.00 each (a $102 gross payout, or +$52 profit). If NO resolves, the shares are worth $0. Slippage tolerance and resting-order depth determine the actual fill.
PolyGram charges 0% house edge — no spread mark-up, no rake on winnings, no withdrawal fees beyond network gas. The platform earns exclusively from optional features (copy-trade boosts, advanced order types, the yield vault on idle USDC); the trading surface itself is at-cost.
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The mechanics for trading "Zuffa Boxing 7: Massey vs. Clarke (Cruiserweight, Main)" are the same as any other PolyGram sporting 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.
$172 in lifetime turnover and $3K of resting liquidity puts this market in the below the median by volume for sports 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 $42 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.
As of today, traders on Polymarket price this outcome at 49%. The number updates continuously as the order book clears. PolyGram mirrors the same live odds with locale-aware formatting and USDC settlement.
Resolution is sourced from https://www.ufc.com/. 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 7 June 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. For "Zuffa Boxing 7: Massey vs. Clarke (Cruiserweight, Main)", the considerations above apply directly — Sports outcome contracts are sensitive to single-event variance — a coin-flip game, a referee call, or an injured player can move the line 10-30¢ in seconds. Position sizing should reflect that variance rather than the expected value alone.
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.
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