Resolution criteria on PolyGram: This market refers to the tennis match between Ashlyn Krueger and Himeno Sakatsume in the Birmingham, originally scheduled for June 2, 2026 at 5:30AM ET. This market will resolve to 'Ashlyn Krueger' if Ashlyn Krueger advances against Himeno Sakatsume. This market will resolve to 'Himeno Sakatsume' if Himeno Sakatsume advances against Ashlyn Krueger. 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
| Birmingham: Ashlyn Krueger vs Himeno Sakatsume | 74% YES | 27% NO |
| Completed Match | 50% YES | 50% NO |
| Birmingham: Ashlyn Krueger vs Himeno Sakatsume Set 1 O/U 8.5 | 67% YES | 34% NO |
| Birmingham: Ashlyn Krueger vs Himeno Sakatsume Set 1 O/U 9.5 | 50% YES | 50% NO |
| Birmingham: Ashlyn Krueger vs Himeno Sakatsume Set 1 O/U 10.5 | 23% YES | 78% NO |
| Birmingham: Ashlyn Krueger vs Himeno Sakatsume Total Sets: O/U 2.5 | 34% YES | 67% NO |
| Birmingham: Ashlyn Krueger vs Himeno Sakatsume Match O/U 21.5 | 46% YES | 55% NO |
| Birmingham: Ashlyn Krueger vs Himeno Sakatsume Match O/U 22.5 | 50% YES | 50% NO |
Ashlyn Krueger faces Himeno Sakatsume in the Birmingham tournament, originally scheduled for 2 June 2026 at 5:30 AM ET. The current order book on Polymarket implies a 73% probability that Krueger advances, reflecting market participants' assessment of the matchup based on recent form, head-to-head records, and surface conditions at the Birmingham venue. This probability has formed through continuous trading activity as the settlement window approaches its 9 June deadline.
Krueger's recent performance on grass courts and her ranking relative to Sakatsume's current trajectory provide the foundation for the market's lean towards her advancement. Historical patterns in women's tennis at Birmingham show that higher-ranked players or those with stronger grass-court records tend to advance at rates broadly consistent with pre-match probabilities in the 70–75% range. Sakatsume's record against comparable opposition and her experience at this tournament level will determine whether the current odds adequately price her upset potential.
Traders should monitor official tournament scheduling confirmations, any player injury announcements, and weather forecasts for Birmingham in early June, as surface conditions can significantly influence outcomes on grass. The seven-day delay threshold in the resolution criteria means that fixture postponements beyond 7 June would trigger a 50-50 resolution, creating a distinct risk factor separate from match outcome. Any withdrawal or late scratches would also materially shift the probability landscape before the settlement window closes.
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 "Birmingham: Ashlyn Krueger vs Himeno Sakatsume" 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.
$2K in lifetime turnover and $44K of resting liquidity puts this market in the below the median by volume for tennis contracts on PolyGram. Order-book depth is strong — order books support five-figure trades with single-cent slippage.
Last 24 hours alone saw $2K 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 9 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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