Andreeva vs. Brantmeier: Match O/U 23.5

Q: Andreeva vs. Brantmeier: Match O/U 23.5

Prediction markets currently price this at 32%. A YES share costs 32.0¢ and pays $1 if it happens. That is a return of 212.5% over 5d.

Porto: Erika Andreeva vs Reese Brantmeier$98 liquidity$0 volumecloses 5d

TennisSportsGames

Trade on Polymarket

BUY YES

Cost: 32.0¢
Implied chance: 32.0%
Return if right: 212.5%
Spread cost: 29%

If you put in $100

You get 312.5 shares at 32.0¢ each.

YES wins: $312.50 back, a profit of $212.50. YES loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $87.50 of that profit. Without it you would make $300.00.

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: 82.0¢
Implied chance: 82.0%
Return if right: 22.0%
Spread cost: 34%

If you put in $100

You get 122.0 shares at 82.0¢ each.

NO wins: $121.95 back, a profit of $21.95. NO loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $11.38 of that profit. Without it you would make $33.33.

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: Sep 22, 06:00 PM4 further outcomes not shown

Latest news

headlines link to their publishers

Gauff beats Andreeva to reach US Open semifinals in comeback winAl Jazeera · 14d ago

Headlines are matched on the names in “Andreeva vs. Brantmeier: Match O/U 23.5”. 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 Erika Andreeva and Reese Brantmeier in the Porto, originally scheduled for September 22, 2026 at 10:30AM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 24. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by October 6, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the match played according to the match format published by the tournament organizer for that round, including whether a final set is played as a full set or as a match tiebreak. For example, for a line of 21.5, if play stops at 6-3, 5-6, completing the match would have required at least 2 additional games, resulting in at least 22 games played, so "Over" would resolve as the winning outcome. Likewise, if the published format replaces the final set with a match tiebreak, that tiebreak counts as one (1) game, so for a line of 22.5, if play stops at 6-2, 3-3, the match could have reached at most 22 games and "Under" would resolve as the winning outcome. The primary resolution source for this market will be official WTA Challenger statistics; however, a consensus of credible reporting may also be used.

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