Joao Fonseca vs. Christopher O'Connell: Total Sets O/U 2.5

Q: Joao Fonseca vs. Christopher O'Connell: Total Sets O/U 2.5

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.

Cincinnati Open: Joao Fonseca vs Christopher O'Connell$10k liquidity$0 volumecloses 8d

TennisSportsGames

Trade on Polymarket

BUY YES

Cost: 39.0¢
Implied chance: 39.0%
Return if right: 156.4%
Spread cost: 21%

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 $42.10 of that profit. Without it you would make $198.51.

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: 72.0¢
Implied chance: 72.0%
Return if right: 38.9%
Spread cost: 23%

If you put in $100

You get 138.9 shares at 72.0¢ each.

NO wins: $138.89 back, a profit of $38.89. NO loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $11.49 of that profit. Without it you would make $50.38.

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 17, 06:28 AM4 further outcomes not shown

Latest news

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How this market resolves

This market refers to the tennis match between Joao Fonseca and Christopher O'Connell in the Cincinnati Open, originally scheduled for August 18, 2026 at 10:00AM ET. This market will resolve to "Over" if the total number of sets completed equals or exceeds 3. Otherwise, it will resolve to "Under." A super tie breaker is considered as one (1) set for total set markets. If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50. Resolution will be based on official ATP statistics.

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