Resolution criteria on PolyGram: This market refers to the doubles tennis match between Havlickova/Salkova and Haverlag/Waltert in the Makarska, originally scheduled for June 3, 2026 at 4:00AM ET. This market will resolve to 'Havlickova/Salkova' if the team of Havlickova/Salkova advances against Haverlag/Waltert. This market will resolve to 'Haverlag/Waltert' if the team of Haverlag/Waltert advances against Havlickova/Salkova. 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
| Completed Match | 50% YES | 50% NO |
| Makarska (Doubles): Havlickova/Salkova vs Haverlag/Waltert | 49% YES | 52% NO |
A doubles tennis match scheduled for 3 June 2026 at 4:00 AM ET in Makarska will determine whether the Czech pairing of Havlickova and Salkova or the Swiss combination of Haverlag and Waltert advances in the tournament. The settlement window closes on 10 June, allowing a seven-day buffer for fixture delays. Currently, Polymarket's order book reflects a 50-50 split between the two outcomes, suggesting traders perceive neither pairing as having a material advantage at this juncture.
The even probability mirrors typical early-stage doubles matchups where both teams possess comparable ranking points and recent form. Czech doubles players have maintained steady performances on the ITF and WTA circuits, whilst Swiss pairings have shown variable results depending on partner chemistry and surface preference. Without significant recent tournament results or head-to-head records between these specific combinations, the market has settled at parity—a common baseline when historical data is sparse or evenly distributed.
Traders should monitor tournament draw confirmations and any late withdrawals or substitutions, which occasionally occur in lower-tier events. Surface conditions in Makarska—typically clay courts—may favour certain playing styles, though this information becomes relevant only once official practice schedules emerge closer to the event date. The early morning scheduling (4:00 AM ET) reflects European tournament timing and carries no inherent predictive value for match outcomes, though it may affect liquidity on Polymarket's order book as the fixture approaches.
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.
The mechanics for trading "Makarska (Doubles): Havlickova/Salkova vs Haverlag/Waltert" 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.
$179 in lifetime turnover and $52 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 $9 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.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 10 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.
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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