Resolution criteria on PolyGram: This market refers to the doubles tennis match between Ambrogi/Zeitune and Oliveira/Villanueva in the Cordoba, originally scheduled for May 13, 2026 at 2:00PM ET. This market will resolve to 'Ambrogi/Zeitune' if the team of Ambrogi/Zeitune advances against Oliveira/Villanueva. This market will resolve to 'Oliveira/Villanueva' if the team of Oliveira/Villanueva advances against Ambrogi/Zeitune. 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
| Cordoba (Doubles): Ambrogi/Zeitune vs Oliveira/Villanueva | 51% YES | 50% NO |
| Completed Match | 50% YES | 50% NO |
The Cordoba doubles final will pit the pairing of Ambrogi and Zeitune against Oliveira and Villanueva on 13 May 2026. The current orderbook on Polymarket reflects a 50–50 split, indicating genuine uncertainty amongst traders about which team advances. This even probability suggests neither pairing holds a decisive advantage in the eyes of the market, despite whatever seeding or recent form differentials may exist between the four players involved.
Doubles tennis outcomes hinge heavily on serve-and-volley coordination, net play chemistry, and break-point conversion rates—factors that can shift sharply between partnerships with limited recent history together. Historical precedent from ATP and WTA doubles events shows that unseeded or lower-ranked pairings frequently upset favourites when they possess superior court positioning or momentum from earlier rounds. The current 50–50 pricing reflects this inherent volatility; without substantial head-to-head records or recent tournament results between these specific pairs, the market has settled on neutral ground.
Traders should monitor official tournament announcements regarding player fitness or withdrawal through to the settlement window closing on 20 May. Surface conditions at Cordoba—a clay court event—will favour players with strong lateral movement and sliding technique. Any late-stage lineup changes, coaching adjustments, or injury reports in the days before 13 May could shift the orderbook materially. The seven-day delay clause means matches postponed beyond 20 May without resolution will trigger a 50–50 settlement, adding scheduling risk to the underlying event uncertainty.
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 "Cordoba (Doubles): Ambrogi/Zeitune vs Oliveira/Villanueva" 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.
$81 in lifetime turnover and $0 of resting liquidity puts this market in the below the median by volume for tennis 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 $81 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.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 20 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: