How the contract works
A contract on this question settles at $1 if Coco Gauff is the player who advances against Cristina Bucsa, and at nothing if Bucsa advances instead. The settlement date is 12 September 2026, with a formal fallback deadline of 19 September 2026, 11:59 PM ET if no result is confirmed by then. A price of, say, 0.80 would mean the market sees roughly an 80% chance Gauff is the one who moves on; a price of 0.10 would mean the opposite is expected. A position in either direction can typically be sold before settlement at whatever price the market is showing at that moment, rather than held until the result is official.
Yes1%
No99%
Probability
How the price has moved
Only one clear data point is available for this market: a consensus of 0% across the venue tracked, alongside $436,448 in total volume. There is no reported opening level or day-to-day move to compare it against, but the combination of an extreme price and substantial volume is itself a story — it describes a market that has already absorbed a result rather than one still pricing a contest between two players of different rankings. A flat, near-zero reading at this stage means the market considers the question close to settled, not that it expects a routine, uneventful match still to come.
Analysis
Context
Coco Gauff is an American former US Open champion, having won the title in 2023, and one of the sport's most closely watched names on home soil. Cristina Bucsa is a Spanish player who has built her ranking largely through steady week-to-week results rather than deep runs at majors, making her a less familiar name to casual US Open followers but a credible danger in a single match. The two were drawn to meet at the 2026 US Open, with the match originally slated for 5 September 2026, part of the tournament's early rounds at the USTA Billie Jean King National Tennis Center in New York.
The consensus figure sitting at 0% is the most informative number on this page, because it is not describing a coin-flip match between a major champion and a lower-ranked opponent that has yet to be played. Under normal circumstances, a matchup between a former US Open champion and a player ranked well outside the tournament's seeded field would draw a heavy price toward the favorite, not toward zero. A price this low, on a single-venue market that has still attracted $436,448 in trading volume, points to one thing: the match has already been decided, and the market has absorbed that information well ahead of the 12 September settlement date. The scheduled date of 5 September, six days before today, supports that reading directly. Volume of this size on a first-week singles match is itself notable — it suggests the outcome carried surprise value, since routine, expected results in early rounds of a major typically draw thinner interest once the price has moved to an extreme. The absence of a second venue to compare against means there is no cross-market spread to examine, so the read here rests on the price level and the volume behind it rather than on disagreement between platforms. Because the settlement source is the official WTA Tour scores page, the market has no ambiguity to resolve once that page reflects a completed result — the only open question is procedural, covering scenarios like retirement, walkover, or a match that somehow remains unresolved past 19 September.
What moves the probability
Match already played
The original schedule date of 5 September 2026 falls six days before today, and a near-zero price is far more consistent with a completed result already priced in than with a genuine pre-match forecast.
Volume despite an extreme price
$436,448 in trading on a market priced near zero suggests meaningful interest formed around the outcome itself, which is more typical of an upset result than a routine, expected one.
Single-venue pricing
With only Polymarket listed, there is no second market to check the price against, so the reading relies on the level and volume of one venue rather than convergence across several.
Official source dependency
Settlement runs strictly through the WTA Tour's official scores page, so any delay in that page reflecting a final result — rather than any tennis uncertainty — is the main procedural risk before 12 September.
The case for
- Coco Gauff would need to have won her completed match against Cristina Bucsa, or to be the player who advances if the match ends in retirement, default, or disqualification against Bucsa.
- The WTA Tour's official scores page would need to record Gauff as the winner by 12 September 2026, or by the 19 September fallback deadline at the latest.
- As a former US Open champion, Gauff entering the match as the higher-profile, higher-ranked player was the baseline expectation before any result was known.
The case against
- The market's near-zero price is the strongest signal on the page, and it points toward Bucsa having advanced rather than Gauff.
- Cristina Bucsa only needed one completed match, on one day, against a higher-ranked opponent, which is a familiar shape for an upset at a Grand Slam.
- If the match were undecided, retired, or defaulted, the rules make the advancing player the winner regardless of ranking, and the price would not need to sit near zero to reflect a fair contest — it would only sit there if the outcome were already known.
What to watch
The only remaining events are procedural. The WTA Tour's official scores page needs to reflect a completed result before the 12 September 2026 settlement date; if it does not, the market's built-in fallback pushes the deadline to 19 September 2026, 11:59 PM ET, at which point an unresolved match settles 50-50 regardless of any partial reporting.
Trade this contract
Open on Polymarket
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