Resolved No on 3 Sep 2026.
The last daily price before settlement had No at 86%. Yes opened at 15% on 26 Aug 2026. Before it settled, across the 9 daily closes on record from 26 Aug 2026 to 3 Sep 2026, the highest close was 35.5% on 28 Aug 2026 and the lowest 7.5% on 27 Aug 2026. Its largest one-day move was 28 points up, to 35.5% on 28 Aug 2026. $662.25 traded over the market's life.
6 wallets still hold shares. Winners redeem theirs after settlement, so what is left is mostly the losing side.
Polymarket record as of Sep 4, 7:42 PM UTC
Daily closes of the Yes price, Polymarket CLOB, 9 points, 26 Aug 2026 – 3 Sep 2026, chart shows 0%–50%
| Observed | Yes price |
|---|---|
| 26 Aug 2026 | 15.0% |
| 3 Sep 2026 | 14.0% |
Winners have redeemed their shares, so most of what is left is the losing side.
| Trader | Outcome | Shares |
|---|---|---|
| DoctorMaybe | Yes | 65.5 |
| CBSumo | Yes | 32 |
| centubaby | Yes | 20.83 |
| ABC12345654321 | Yes | 19.49 |
Open a trader’s name to inspect the wallet’s available P&L, positions and recorded trades, with source dates and coverage. A large position alone does not establish a winning track record.
This market will resolve to "Yes" if the listed player clinches a spot in the Semifinals at the 2026 US Open per US Open rules. Otherwise, the associated market will resolve to "No". If at any point it becomes impossible for the listed player to clinch a spot in the Semifinals at the 2026 US Open (e.g. the player is eliminated), the associated market will resolve to "No". If the 2026 US Open is cancelled, postponed after September 27, 11:59 PM ET, or the players that qualified for the Semifinals have not been officially confirmed by the USTA within that timeframe, this market will resolve to "No". The resolution source for this market will be official information from the USTA and ATP; however, a consensus of credible reporting may also be used.
Official listing: polymarket.com/event/us-open-2026-to-reach-semifinals-mens-singles-20260824175605000
| bjprolo | Yes | 8 |
| Feisty-Rabbit-Stopwatch | Yes | 0.01 |
New to prediction markets? How to read a market page