- Halys vs. Acosta: Set 1 Games O/U 8.579¢
- Halys vs. Acosta: Set 1 Games O/U 9.558¢
- Halys vs. Acosta: Set 3 Games O/U 8.550¢
- Halys vs. Acosta: Set 3 Games O/U 10.550¢
- Set Handicap: Halys (-1.5) vs Acosta (+1.5)61¢
- Set 4 Winner: Halys vs Acosta50¢
- US Open ATP: Quentin Halys vs Facundo Acosta76¢
- US Open ATP: Completed Match: Quentin Halys vs Facundo Acosta50¢
- Game Spread: Halys (-5.5) vs Acosta (+5.5)47¢
- Quentin Halys vs. Facundo Acosta: Total Sets O/U 4.524¢
- Set Handicap: Halys (-2.5) vs Acosta (+2.5)36¢
- Halys vs. Acosta: Set 4 Games O/U 8.550¢
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.
Quentin Halys enters the US Open first-round matchup against Facundo Diaz Acosta as the higher-ranked player at No. 52 with a stronger 2026 hard-court record of 18-11, compared to Acosta’s limited recent hard-court activity after a clay-dominant schedule that includes multiple Challenger titles. Halys arrives after a second-round loss in Winston-Salem, while Acosta holds a 1-0 head-to-head edge from their 2023 hard-court meeting but faces questions about serve consistency and break-point conversion on the faster US Open surface. Both players have shown solid recent form overall, yet Halys’ main-tour experience and higher ranking reflect trader consensus favoring him in this Grand Slam opener.