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| Outcome | Chance | 24h | 1 week | Bid · Ask | 24h volume | Ends |
|---|---|---|---|---|---|---|
| US Open ATP: Quentin Halys vs Facundo Acosta | 100% | +24 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| Completed Match | 100% | +50 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Match O/U 38.5 | 100% | +53 pts | — | 100¢ · 100¢ (1¢) | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Match O/U 36.5 | 100% | +48 pts | — | 100¢ · 100¢ (1¢) | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set Handicap +/-2.5 | 0% | −35 pts | — | — · 1¢ | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set 1 Winner | 100% | +34 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Total Sets: O/U 3.5 | 100% | +42 pts | — | 99¢ · 100¢ (1¢) | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Game Spread +/-5.5 | 100% | +53 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set Handicap +/-1.5 | 100% | +39 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set 2 O/U 8.5 | 100% | +40 pts | — | 80¢ · 100¢ (20¢) | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set 2 Winner | 100% | −1 pts | — | 63¢ · 68¢ (5¢) | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set 1 O/U 8.5 | 100% | +21 pts | — | 100¢ · 100¢ (1¢) | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set 2 O/U 9.5 | 100% | — | — | — · 100¢ | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Total Sets: O/U 4.5 | 0% | −24 pts | — | — · <1¢ | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set 1 O/U 9.5 | 100% | +42 pts | — | 100¢ · 100¢ (1¢) | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set 3 Winner | 0% | −68 pts | — | — · <1¢ | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set 2 O/U 10.5 | 100% | — | — | — · 100¢ | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Match O/U 40.5 | 100% | +58 pts | — | 100¢ · 100¢ (1¢) | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set 1 O/U 10.5 | 0% | −39 pts | — | — · 1¢ | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set 4 Winner | 100% | +50 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set 3 O/U 8.5 | 100% | — | — | — · 100¢ | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set 3 O/U 9.5 | 100% | — | — | — · 100¢ | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set 3 O/U 10.5 | 100% | — | — | — · 100¢ | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set 4 O/U 8.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set 4 O/U 9.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| US Open ATP: Quentin Halys vs Facundo Acosta Set 4 O/U 10.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| When | Trader | Outcome | Bet | Size | P&L now | Insider |
|---|---|---|---|---|---|---|
| 53d |  hd777 | US Open ATP: Quentin Halys vs Facundo Acosta | BuyQuentin Halys96¢ → 100¢ | $5,162 | +$215 +4.2% | 4 |
| 53d | HomeRunHazard | US Open ATP: Quentin Halys vs Facundo Acosta | BuyFacundo Acosta20¢ → 0¢ | $1,024 | −$1,024 −100% | 6 |
| 53d |  eskk | US Open ATP: Quentin Halys vs Facundo Acosta | BuyQuentin Halys98¢ → 100¢ | $1,124 | +$21 +1.8% | 4 |
| 53d | sifonman2 fills | US Open ATP: Quentin Halys vs Facundo Acosta | BuyFacundo Acosta16¢ → 0¢ | $3,587 | −$3,587 −100% | 6 |
| 53d | Decisive-CloseNew account | US Open ATP: Quentin Halys vs Facundo Acosta | BuyQuentin Halys84¢ → 100¢ | $1,230 | +$234 +19% | 5 |
| 53d | Genuine-Turning-Research2 fills | US Open ATP: Quentin Halys vs Facundo Acosta | BuyFacundo Acosta20¢ → 0¢ | $2,850 | −$2,850 −100% | 6 |
| 53d | omnibus-076daa2 fills | US Open ATP: Quentin Halys vs Facundo Acosta | BuyFacundo Acosta23¢ → 0¢ | $2,964 | −$2,964 −100% | 6 |
| 53d | beachboy43 fills | US Open ATP: Quentin Halys vs Facundo Acosta | BuyQuentin Halys77¢ → 100¢ | $115,547 | +$33,882 +29% | 6 |
| 53d | Substantial-Service | US Open ATP: Quentin Halys vs Facundo Acosta | BuyQuentin Halys75¢ → 100¢ | $7,009 | +$2,336 +33% | 6 |
| 54d | ferrariChampions2026 | US Open ATP: Quentin Halys vs Facundo Acosta | BuyQuentin Halys72¢ → 100¢ | $2,897 | +$1,127 +39% | 6 |
| 54d | 0000. | US Open ATP: Quentin Halys vs Facundo Acosta | SellQuentin Halys71¢ → 100¢ | $3,721 | −$1,520 −41% | — |
| 54d | 0000. | US Open ATP: Quentin Halys vs Facundo Acosta | BuyQuentin Halys76¢ → 100¢ | $4,000 | +$1,241 +31% | 6 |
ForAndWithYou5,000 sharesThis 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.
Sources: Polymarket's Gamma API, its CLOB price history and its Data API, read every two minutes. Prices are each outcome's Yes price, which is the market's probability: 100¢ for US Open ATP: Quentin Halys vs Facundo Acosta means the market gives it about 100%.