Resolution criteria on PolyGram: This market refers to the tennis match between Martina Okalova and Reese Brantmeier in the ITF Women Wichita, originally scheduled for May 29, 2026 at 11:00AM ET. This market will resolve to 'Martina Okalova' if Martina Okalova advances against Reese Brantmeier. This market will resolve to 'Reese Brantmeier' if Reese Brantmeier advances against Martina Okalova. 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
| ITF Wichita: Martina Okalova vs Reese Brantmeier | 0% YES | 100% NO |
| Completed Match | 100% YES | 0% NO |
Martina Okalova faces Reese Brantmeier in the ITF Women's tournament at Wichita, scheduled for 29 May 2026. The current order book on Polymarket shows zero probability for Okalova, reflecting either strong conviction in Brantmeier's superiority or minimal trading activity establishing a baseline price. With settlement occurring on 5 June, traders have a narrow window to assess form, injury status, and surface conditions before the match concludes.
ITF tournaments at this level typically feature significant variance in outcomes, particularly when comparing players with limited professional records or inconsistent ranking trajectories. Historical precedent suggests that 0% implied probabilities in women's tennis matches often reflect incomplete information rather than genuine certainty; upsets occur regularly in lower-tier professional events where player preparation, recent match fitness, and psychological factors create unpredictability. Comparable matches show that even heavily favoured players can struggle against opponents with nothing to lose or favourable stylistic matchups.
Key catalysts include any withdrawal announcements from either player, which would trigger the 50-50 tie-break resolution clause. Traders should monitor ITF rankings updates and recent tournament results from both competitors in the weeks preceding 29 May. Surface conditions at Wichita—typically hard court—may favour particular playing styles. The settlement window's seven-day extension clause means delays beyond 5 June without completion would also resolve to 50-50, creating additional uncertainty around scheduling reliability for ITF events.
This market settles from the official outcome published at https://www.itftennis.com/en/tournament-calendar/. 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 "ITF Wichita: Martina Okalova vs Reese Brantmeier" 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.
$1K 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.
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.itftennis.com/en/tournament-calendar/. 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 5 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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