
Resolved Quentin Halys on 1 Sep 2026.
The last daily price before settlement had Quentin Halys at 87.5%. The Quentin Halys side opened at 75% on 29 Aug 2026. Before it settled, across the 4 daily closes on record from 29 Aug 2026 to 1 Sep 2026, the highest close was 87.5% on 1 Sep 2026 and the lowest 75% on 29 Aug 2026. Its largest one-day move was 12 points up, to 87.5% on 1 Sep 2026. $313.89K traded over the market's life.
76 wallets still hold shares. Winners redeem theirs after settlement, so what is left is mostly the losing side.
Polymarket record as of Sep 2, 4:26 AM UTC
Daily closes of the Quentin Halys price, Polymarket CLOB, 4 points, 29 Aug 2026 – 1 Sep 2026, chart shows 70%–90%
| Observed | Quentin Halys price |
|---|---|
| 29 Aug 2026 | 75.0% |
| 1 Sep 2026 | 87.5% |
Winners have redeemed their shares, so most of what is left is the losing side.
| Trader | Outcome | Shares |
|---|---|---|
| Genuine-Turning-Research | Facundo Acosta | 14.46K |
| Bagwell306 | Facundo Acosta | 10K |
| ForAndWithYou | Facundo Acosta | 5K |
| AnonymousUsername | Facundo Acosta |
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 refers to the tennis match between Quentin Halys and Facundo Acosta in the US Open ATP, originally scheduled for August 30, 2026 at 11:00AM ET. This market will resolve to 'Quentin Halys' if Quentin Halys advances against Facundo Acosta. This market will resolve to 'Facundo Acosta' if Facundo Acosta advances against Quentin Halys. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 13, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.
Official listing: polymarket.com/event/atp-halys-acosta-2026-08-30
| 3.68K |
| Lilybaeum | Facundo Acosta | 3.15K |
| Golden Sphinx BDB3 | Facundo Acosta | 2.9K |
| hi774c | Facundo Acosta | 2.81K |
| Jarod21 | Facundo Acosta | 2.8K |
| UpTheBlues | Facundo Acosta | 2.73K |
| Reliable-Giggle | Facundo Acosta | 2.57K |
New to prediction markets? How to read a market page