Resolution criteria on PolyGram: This market refers to the doubles tennis match between Ayeni/Dodig and Goldhoff/Ingildsen in the Zagreb, originally scheduled for May 14, 2026 at 4:00AM ET. This market will resolve to 'Ayeni/Dodig' if the team of Ayeni/Dodig advances against Goldhoff/Ingildsen. This market will resolve to 'Goldhoff/Ingildsen' if the team of Goldhoff/Ingildsen advances against Ayeni/Dodig. 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.
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
| Zagreb (Doubles): Ayeni/Dodig vs Goldhoff/Ingildsen | 40% YES | 60% NO |
| Completed Match | 50% YES | 51% NO |
The Zagreb doubles draw features Ayeni and Dodig facing Goldhoff and Ingildsen in what is scheduled as an early-round match on 14 May 2026. The current order book on Polymarket reflects a 40% implied probability for Ayeni/Dodig's advancement, suggesting the market views Goldhoff/Ingildsen as slight favourites. This probability formation emerges from traders pricing in seeding positions, recent ATP doubles rankings, and head-to-head records where available.
Comparable doubles matchups at ATP 250 level tournaments typically see probabilities shift based on partnership stability and recent tournament performance. Dodig, an experienced doubles player with multiple ATP titles, brings considerable pedigree to the pairing, though partnership chemistry with Ayeni and current form matter considerably. The opposing pairing's ranking and recent results will determine whether the current 40% fairly values Ayeni/Dodig or reflects underestimation of their capabilities.
Traders should monitor official ATP and tournament draws for confirmation of the exact bracket position, any late withdrawals, or scheduling changes that could affect match conditions. Weather forecasts for Zagreb in mid-May and any injury updates on the four players involved will influence probability shifts on the order book. The settlement window extends to 21 May, providing a week buffer beyond the scheduled date; matches delayed beyond seven days without completion trigger a 50-50 resolution, a tail risk worth pricing into positions.
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.
The mechanics for trading "Zagreb (Doubles): Ayeni/Dodig vs Goldhoff/Ingildsen" 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.
$0 in lifetime turnover and $2K of resting liquidity puts this market in the below the median by volume for games 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 21 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.
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