sports
⚡ Tight
99%
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Roman Safiullin vs. Joao Fonseca: Roman Safiullin vs Joao Fonseca
24h Vol
$647.6K
Liquidity
--
Spread
0%
7/16/2026
View marketSports
Polymarket market
Track live probability, outcome prices, volume, liquidity, and resolution details for Will Marketa Vondrousova win the 2026 Women’s US Open?. The market currently shows a live probability of 0%, $524.8 in 24h volume, and $14.1K in liquidity.
Probability
0%
24h Volume
$524.8
Liquidity
$14.1K
This market asks whether Marketa Vondrousova will win the 2026 U.S. Open women’s singles title. The U.S. Open is one of tennis’s four major tournaments, so this is a straightforward championship question with a clear official finish line: the named winner of the women’s draw.
The event is the 2026 U.S. Open Women’s Singles Tournament, scheduled for August 23 through September 13, 2026. The market resolves to “Yes” only if Marketa Vondrousova is the official winner of that title; otherwise it resolves to “No,” unless the tournament is cancelled, delayed past October 31, 2026, or no winner is declared by then, in which case it resolves to “Other.” The primary source is the U.S. Open’s official information, with credible reporting used only as a fallback if needed.
Tennis majors are single-elimination events, so one injury, withdrawal, or upset can eliminate even a top player from contention. Marketa Vondrousova is a recognized Grand Slam-level player, which makes the question more interesting than a generic long shot, but winning the U.S. Open still requires surviving multiple rounds against a deep field.
The biggest price movers will be Vondrousova’s entry status, health, and draw position once the tournament approaches, along with any official withdrawals or injury news that affect her ability to compete. Later, match results during the event will matter most: a favorable draw, a string of wins, or an upset loss can quickly change whether she is still alive to win the title. Because the market resolves only to the official women’s singles champion, anything that clarifies the final bracket or tournament completion date can also matter.
The current market price implies roughly a 0% chance for the leading outcome, based on live Polymarket pricing. That number is not a prediction from PredictionNinja and it is not a guarantee; it is the current crowd-priced view of the market and can change quickly when new information appears.
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24h Vol
$647.6K
Liquidity
--
Spread
0%
7/16/2026
View marketBefore settlement, readers should check the official U.S. Open women’s singles results and confirm the tournament actually finishes within the stated window. The key ambiguity to watch is whether Vondrousova is still active in the draw; if she is eliminated or ruled out under tournament rules, the market should move toward “No.” If the event is altered, delayed beyond October 31, 2026, or ends without a declared winner, the special “Other” rule applies, so the official source of truth matters more than headlines or speculation.
Track live probability, outcome prices, volume, liquidity, and resolution details for Will Marketa Vondrousova win the 2026 Women’s US Open?. The market currently shows a live probability of 0%, $524.8 in 24h volume, and $14.1K in liquidity.
Track live sports prediction markets focused on championships, tournaments, player performances, team outcomes, and major sporting events worldwide.
Yes
0.2%
No
99.8%
This market is currently listed with an end date of Sep 13, 2026. Market timelines can change if the underlying event is postponed, rescheduled, or resolved early.
The 2026 U.S. Open tennis tournament is scheduled for August 23 - September 13, 2026. This market will resolve to the player that wins the 2026 U.S. Open Women’s Singles Tournament. If at any point it becomes impossible for a listed player to win the 2026 U.S. Open Women’s Singles Tournament per the rules of the tournament, the corresponding market will resolve to “No”. If the 2026 U.S. Open Women’s Singles Tournament is cancelled, postponed after October 31, 2026, or there is otherwise no winner declared within that timeframe, this market will resolve to “Other”. The primary resolution source will be official information from the U.S. Open (https://www.usopen.org/index.html); however, a consensus of credible reporting may also be used.
Probability signal
The current price implies a lower-probability outcome, which can make the market more sensitive to surprise news.
Liquidity context
Liquidity is relatively deep for a prediction market page, so quoted prices may be more reliable than very thin markets.
Spread
The bid-ask spread is tight, which usually points to a more actively priced market.
Recent movement
The 24h move is modest, suggesting the market has not repriced dramatically in the latest feed.
The current displayed probability is 0%, based on the latest normalized Polymarket data available to PredictionNinja.
The rules and resolution criteria are pulled from the market description provided by Polymarket when available.
Prediction markets can move whenever traders react to new information, liquidity changes, injuries, announcements, news, or other event-specific developments.
No. PredictionNinja displays market data and context for research only. It is not financial, legal, betting, or investment advice.
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