How the contract works
A contract on this market pays $1 if Tommy Paul is recorded as the winner of the match and nothing if Zverev wins or advances by retirement, default or disqualification. The price at any moment is simply the collective view of buyers and sellers on how likely that $1 outcome is โ a contract priced at 0.30, for example, would mean the market sees roughly a three-in-ten chance, not that Paul is losing three sets to ten. Settlement is tied to the match originally scheduled for 19 August 2026, with a final resolution date of 26 August 2026 to allow for delays; if nothing is resolved by then it defaults to an even 50-50 split. Anyone holding a position can sell it before that settlement date at whatever price the market is showing at the time.
Yes1%
No99%
Probability
How the price has moved
There is no multi-day price history available beyond the current reading, but the level itself tells the story: consensus across venues sits at 0%, on volume of $1,046,315 concentrated in a single venue, Polymarket. A market this large does not typically settle at a hard floor unless the underlying question has effectively already been answered by events on the ground โ in this case, a match that was due to be played two days before this page was compiled. The move follows no single publicly reported trigger visible in the data provided, but the destination, an exact zero with substantial volume behind it, is itself the signal.
Analysis
Context
The Cincinnati Open is an ATP Masters 1000 hardcourt tournament and a traditional warm-up for the US Open. Tommy Paul, an American, and Alexander Zverev, a German, were drawn to play each other, with the match originally set for 19 August 2026. The contract asks a single yes/no question: did Paul win that match. If the match could not be completed because of a retirement, default or disqualification, the rules send the result to whichever player advanced; if it never happened at all, or dragged on unresolved for more than seven days, it resolves 50-50 instead of favoring either player. The official source for settlement is ATP Tour's live scores page, backed up by credible reporting if needed.
The single most informative number here is the level itself: 0% across the only venue carrying this market, Polymarket, with $1,046,315 in volume behind it. That is not a thin, untraded contract sitting at zero by default โ it is over a million dollars of trading activity converging on one answer. A market that large settling at a flat floor is not expressing uncertainty about whether Paul could still win; it is expressing near-total agreement that he already did not. Markets rarely price a binary outcome at an exact extreme unless the underlying event has already been observed and reported, which is consistent with a match that was scheduled to be played two days before this page was written.
The timing matters. The contract's resolution date of 26 August 2026 sits a full week after the original 19 August match date, and the rules explicitly allow up to seven days of delay before the market defaults to an even split. That grace period exists for genuine ambiguity โ rain delays, postponements, disputed retirements. A price sitting at zero rather than near 50% tells you the market is not using that grace period because it does not need to; the result is already known, not merely pending. If the outcome were still genuinely in doubt this many venues in, the price would sit closer to the middle rather than at a hard edge.
The resolution source itself, ATP Tour's official scores page, updates matches essentially in real time once they conclude, which is one reason a market like this can move to an extreme quickly and stay there rather than drift. The settlement clause for retirements, defaults or disqualifications sending the result to the 'advancing player' also removes most of the remaining ambiguity: even an incomplete match still produces a clear winner under these rules, so there is little room for a result that neither resolves to Paul nor to Zverev short of a full cancellation.
With only one venue reporting and no visible spread between venues, there is no cross-market disagreement to read into here โ the entire visible trading population has converged on the same answer.
What moves the probability
Match already on the board
The match was scheduled for 19 August 2026, two days before this page was compiled, and ATP's live scores update in real time once a match ends. A price sitting at an exact zero rather than somewhere in the middle is the clearest sign the result is already recorded, pushing the probability to its floor.
Volume behind the price
Over $1,046,315 has traded on this contract, all on a single venue. That much volume settling at one extreme signals broad agreement rather than a stale or illiquid quote, reinforcing that the zero reading reflects information, not inattention.
Resolution source speed
ATP Tour's official scores page is the named settlement source and reflects match outcomes almost immediately, which is why a market like this can reach an extreme price quickly rather than drifting there over days.
Retirement and default clause
Because an incomplete match still resolves to whichever player advances, there is little scenario space left for an outcome that avoids resolving clearly to either Paul or Zverev, short of a full cancellation, which triggers a 50-50 split instead.
The case for
- For this market to resolve to Tommy Paul, the official ATP record of the match originally scheduled for 19 August 2026 would need to show Paul as the winner, whether by straight sets, a deciding third set, or Zverev's retirement, default or disqualification.
- That record would need to be confirmed on ATP Tour's live scores page, the named settlement source, before the final resolution deadline of 26 August 2026.
- None of the visible market data supports this: the only venue trading the contract prices it at zero, which is inconsistent with an outcome that has not yet been determined in Paul's favor.
The case against
- For this market to resolve away from Tommy Paul, Zverev needs to be recorded as the winner of the 19 August 2026 match, or as the advancing player following a retirement, default or disqualification by Paul.
- The zero pricing on Polymarket, backed by over $1,046,315 in volume, is consistent with exactly that having already happened and been reflected on ATP's scoreboard.
- Even if some irregularity delayed formal confirmation, the rules only shift to a 50-50 default if the match is cancelled, tied, or left unresolved for more than seven days beyond the original date โ none of which produces a result in Paul's favor.
What to watch
The next concrete checkpoint is the final resolution deadline of 26 August 2026, by which ATP Tour's official scores page must show a completed result or the contract defaults to a 50-50 split under the delay clause. Between now and then, the only thing that could move this price is a correction or clarification to the official match record โ for instance, if the result were initially misreported, or if a retirement or default needs to be formally attributed to one player under the tournament's rules. Barring that, the scoreboard entry for the 19 August 2026 match is the single fact that determines everything else.
Trade this contract
Open on Polymarket
- gas covered