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Roman Safiullin vs. Joao Fonseca: Roman Safiullin vs Joao Fonseca
24h Vol
$647.6K
Liquidity
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Spread
0%
7/16/2026
View marketSports
Polymarket market
Track live probability, outcome prices, volume, liquidity, and resolution details for Will Beatriz Haddad Maia win the 2026 Women’s US Open?. The market currently shows a live probability of 0%, $25.4K in 24h volume, and $13.5K in liquidity.
Probability
0%
24h Volume
$25.4K
Liquidity
$13.5K
This market asks whether Beatriz Haddad Maia will win the 2026 U.S. Open women’s singles title. The U.S. Open is one of tennis’s four Grand Slam events, so the question depends on a long tournament that still has to unfold match by match in New York.
The outcome is tied to the 2026 U.S. Open Women’s Singles Tournament, scheduled for August 23 through September 13, 2026. If Haddad Maia wins the title, the market resolves to Yes; if some other player wins, it resolves to No. The rules also say that if the event is canceled, delayed beyond October 31, 2026, or ends without an official winner, the market resolves to Other.
There is real uncertainty because a Grand Slam draw can swing quickly with injuries, form, matchup difficulty, and the physical demands of best-of-three-set tennis across two weeks. Beatriz Haddad Maia is a known tour-level player, but winning a major requires surviving a large field of top contenders and many rounds, which is why the market is heavily skewed against a Yes outcome.
Anything that changes Haddad Maia’s outlook for the tournament can affect this market, especially her entry status, health, seeding, and performance in the weeks leading up to the Open. Once the event begins, early-round results, draw position, withdrawals by other top players, and any official information about the tournament bracket can move expectations sharply. Because the market resolves only on the official women’s singles winner, later-round upsets elsewhere in the draw also matter if they improve or worsen her path.
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 site and the final women’s singles results, since those are the primary source of truth under the rules. The important details are whether Haddad Maia is still eligible, whether the tournament is completed on time, and whether an official champion is declared by the deadline. If the event schedule changes or the tournament ends without a winner, the market does not resolve in the same way as a normal title result.
Track live probability, outcome prices, volume, liquidity, and resolution details for Will Beatriz Haddad Maia win the 2026 Women’s US Open?. The market currently shows a live probability of 0%, $25.4K in 24h volume, and $13.5K in liquidity.
Track live sports prediction markets focused on championships, tournaments, player performances, team outcomes, and major sporting events worldwide.
Yes
0.3%
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
No 24h movement is available yet.
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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