Naomi Osaka vs. Elena Rybakina: Total Sets O/U 2.5

Q: Naomi Osaka vs. Elena Rybakina: Total Sets O/U 2.5

Prediction markets currently price this at 42%. A YES share costs 42.0¢ and pays $1 if it happens. That is a return of 138.1% over 8d.

National Bank Open: Naomi Osaka vs Elena Rybakina$4k liquidity$0 volumecloses 8d

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Trade on Polymarket

BUY YES

Cost: 42.0¢
Implied chance: 42.0%
Return if right: 138.1%
Spread cost: 2%

If you put in $100

You get 238.1 shares at 42.0¢ each.

YES wins: $238.10 back, a profit of $138.10. YES loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $2.87 of that profit. Without it you would make $140.96.

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: 59.0¢
Implied chance: 59.0%
Return if right: 69.5%
Spread cost: 2%

If you put in $100

You get 169.5 shares at 59.0¢ each.

NO wins: $169.49 back, a profit of $69.49. NO loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $1.45 of that profit. Without it you would make $70.94.

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 10, 07:59 PM4 further outcomes not shown

Latest news

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Headlines are matched on the names in “Naomi Osaka vs. Elena Rybakina: Total Sets O/U 2.5”. 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 Naomi Osaka and Elena Rybakina in the National Bank Open, originally scheduled for August 11, 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 WTA statistics.

Source: https://www.wtatennis.com/scores