Trade the outcome below — no house edge, instant USDC settlement on Polygon
Resolution criteria on PolyGram: This market refers to the doubles tennis match between Neos/Pankin and Montsi/Schalkwyk in the Centurion, originally scheduled for May 28, 2026 at 4:00AM ET. This market will resolve to 'Neos/Pankin' if the team of Neos/Pankin advances against Montsi/Schalkwyk. This market will resolve to 'Montsi/Schalkwyk' if the team of Montsi/Schalkwyk advances against Neos/Pankin. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50.
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 YES side at 50%, making this a coinflip market with 7 days to resolution, well inside the window where catalysts move price most, backed by $12 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
| Centurion (Doubles): Neos/Pankin vs Montsi/Schalkwyk | 50% YES | 50% NO |
| Completed Match | 50% YES | 50% NO |
The Centurion doubles match between Neos/Pankin and Montsi/Schalkwyk is scheduled for 28 May 2026, with settlement contingent on a decisive result by 4 June. The current order book on Polymarket reflects a 50-50 split, indicating genuine uncertainty amongst traders regarding which pairing will advance. This equilibrium suggests neither team holds a clear statistical advantage in the eyes of active market participants, though the probability may shift as match-day approaches and additional information surfaces.
Doubles tennis outcomes at ATP 250 level events typically hinge on serve consistency, net play coordination, and recent form in partnership. Historical precedent suggests that pairings with established chemistry and recent tournament runs together tend to outperform newly formed or inconsistent combinations. The relative ranking positions and recent doubles records of these four players will be material; traders should monitor whether either pairing has competed together recently or whether either player is nursing injury concerns that might affect court movement or stamina during a best-of-three-sets format.
Key catalysts include official confirmation of player participation as the event date approaches, any last-minute withdrawals or substitutions, and surface conditions at the Centurion venue. Weather disruptions in late May could delay the match beyond the seven-day grace period, triggering a 50-50 resolution. Traders should track ATP announcements regarding the tournament draw and any injury updates from the players' official social media or ATP tour records in the weeks preceding the scheduled date.
This market settles from the official outcome published at https://www.atptour.com/en/scores/current. 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 4 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.atptour.com/en/scores/current), 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 "Centurion (Doubles): Neos/Pankin vs Montsi/Schalkwyk", 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. Your maximum loss is your stake — winning YES (or NO) shares pay $1.00 each at resolution. With this market's current book depth ($12 of resting liquidity), a $50 order should fill with single-cent slippage at the displayed mid-price.
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 "Centurion (Doubles): Neos/Pankin vs Montsi/Schalkwyk" 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.
$0 in lifetime turnover and $12 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.
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.atptour.com/en/scores/current. 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 4 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 "Centurion (Doubles): Neos/Pankin vs Montsi/Schalkwyk", 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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