Herbert vs. Vandecasteele: Set 1 Games O/U 8.5

Q: Herbert vs. Vandecasteele: Set 1 Games O/U 8.5

Prediction markets currently price this at 97%. A YES share costs 97.0¢ and pays $1 if it happens. That is a return of 3.1% over 7d.

Winston-Salem Open, Qualification: Pierre-Hugues Herbert vs Quinn Vandecasteele$11 liquidity$0 volumecloses 7d

TennisSportsGames

Trade on Polymarket

BUY YES

Cost: 97.0¢
Implied chance: 97.0%
Return if right: 3.1%
Spread cost: 97%

If you put in $100

You get 103.1 shares at 97.0¢ each.

YES wins: $103.09 back, a profit of $3.09. YES loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $98.93 of that profit. Without it you would make $102.02.

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: 98.0¢
Implied chance: 98.0%
Return if right: 2.0%
Spread cost: 98%

If you put in $100

You get 102.0 shares at 98.0¢ each.

NO wins: $102.04 back, a profit of $2.04. NO loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $95.98 of that profit. Without it you would make $98.02.

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 23, 05:22 AM4 further outcomes not shown

Latest news

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How this market resolves

This market refers to the tennis match between Pierre-Hugues Herbert and Quinn Vandecasteele in the Winston-Salem Open, Qualification, originally scheduled for August 23, 2026 at 1:00PM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 6, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.

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