Resolution criteria on PolyGram: This market refers to the tennis match between Tamara Korpatsch and Marina Bassols Ribera in the La Bisbal, originally scheduled for May 2, 2026 at 6:30AM ET. This market will resolve to 'Tamara Korpatsch' if Tamara Korpatsch advances against Marina Bassols Ribera. This market will resolve to 'Marina Bassols Ribera' if Marina Bassols Ribera advances against Tamara Korpatsch. 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
| La Bisbal: Tamara Korpatsch vs Marina Bassols Ribera Set 1 O/U 8.5 | 100% YES | 0% NO |
| La Bisbal: Tamara Korpatsch vs Marina Bassols Ribera Match O/U 21.5 | 100% YES | 0% NO |
| La Bisbal: Tamara Korpatsch vs Marina Bassols Ribera Set 1 O/U 9.5 | 0% YES | 100% NO |
| La Bisbal: Tamara Korpatsch vs Marina Bassols Ribera Match O/U 22.5 | 100% YES | 0% NO |
| La Bisbal: Tamara Korpatsch vs Marina Bassols Ribera Set 1 O/U 10.5 | 0% YES | 100% NO |
| La Bisbal: Tamara Korpatsch vs Marina Bassols Ribera Match O/U 23.5 | 100% YES | 0% NO |
| La Bisbal: Tamara Korpatsch vs Marina Bassols Ribera Set 1 Winner | 0% YES | 100% NO |
| La Bisbal: Tamara Korpatsch vs Marina Bassols Ribera Total Sets: O/U 2.5 | 100% YES | 0% NO |
A prediction market is a real-money contract that pays $1 per YES share if the stated outcome occurs, and $0 if it does not. The current price is therefore the crowd's probability estimate — set by thousands of traders competing in a live order book, not a bookmaker. PolyGram routes your order into the same Polymarket venue, adds an email-first login and USDC deposits, and settles on Polygon within minutes of the result.
This market settles from the official outcome published at https://www.wtatennis.com/scores. A proposer submits the final result to the UMA optimistic oracle on Polygon; the two-hour dispute window closes and payouts clear in USDC.
Resolution is sourced from https://www.wtatennis.com/scores. 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 9 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.
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