Seifert vs. Slavic: Match O/U 22.5

Q: Seifert vs. Slavic: Match O/U 22.5

Prediction markets currently price this at 98%. A YES share costs 98.0¢ and pays $1 if it happens. That is a return of 2.0% over 7d.

ITF M15 Båstad Men: Stefan Seifert vs Nikola Slavic$0 liquidity$0 volumecloses 7d

TennisSportsGames

Trade on Polymarket

BUY YES

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.

YES wins: $102.04 back, a profit of $2.04. YES loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $99.98 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: 99.0¢
Implied chance: 99.0%
Return if right: 1.0%
Spread cost: 99%

If you put in $100

You get 101.0 shares at 99.0¢ each.

NO wins: $101.01 back, a profit of $1.01. NO loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $97.01 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 18, 04:15 AM4 further outcomes not shown

Latest news

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How this market resolves

This market refers to the tennis match between Stefan Seifert and Nikola Slavic in the ITF M15 Båstad Men, originally scheduled for August 18, 2026 at 6:15AM ET. This market will resolve to "Over" if the total number of games completed across all sets equals or exceeds 23. Otherwise, it will resolve to "Under." All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total. 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 ITF statistics.

Source: https://www.itftennis.com/en/tournament-calendar/