US Open, Qualification ATP: Stefanos Sakellaridis vs Christopher O'Connell

Q: US Open, Qualification ATP: Stefanos Sakellaridis vs Christopher O'Connell

Prediction markets currently price this at 39%. A YES share costs 39.0¢ and pays $1 if it happens. That is a return of 156.4% over 8d.

US Open, Qualification ATP: Stefanos Sakellaridis vs Christopher O'Connell$5k liquidity$170 volumecloses 8d

TennisSportsGames

Trade on Polymarket

BUY YES

Cost: 39.0¢
Implied chance: 39.0%
Return if right: 156.4%
Spread cost: 6%

If you put in $100

You get 256.4 shares at 39.0¢ each.

YES wins: $256.41 back, a profit of $156.41. YES loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $10.26 of that profit. Without it you would make $166.67.

Assumes the whole order fills at this price. A large order eats into the book and averages worse.

Buy YES on Polymarket

BUY NO

Cost: 64.0¢
Implied chance: 64.0%
Return if right: 56.3%
Spread cost: 6%

If you put in $100

You get 156.3 shares at 64.0¢ each.

NO wins: $156.25 back, a profit of $56.25. NO loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $3.75 of that profit. Without it you would make $60.00.

Assumes the whole order fills at this price. A large order eats into the book and averages worse.

Buy NO on Polymarket

Chance over time

1H 6H 1D 1W 1M ALL

Latest: Aug 24, 06:42 AM4 further outcomes not shown

Latest news

headlines link to their publishers

Headlines are matched on the names in “US Open, Qualification ATP: Stefanos Sakellaridis vs Christo…”. Nobody checks them by hand, so one may not be relevant. They also say nothing about whether the price has already moved on this news.

How this market resolves

This market refers to the tennis match between Stefanos Sakellaridis and Christopher O'Connell in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to 'Stefanos Sakellaridis' if Stefanos Sakellaridis advances against Christopher O'Connell. This market will resolve to 'Christopher O'Connell' if Christopher O'Connell advances against Stefanos Sakellaridis. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 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.

Source: https://www.atptour.com/en/scores/current