W75 Tianjin: Sofia Costoulas vs Shiyu Ye

Q: W75 Tianjin: Sofia Costoulas vs Shiyu Ye

Prediction markets currently price this at 91%. A YES share costs 91.0¢ and pays $1 if it happens. That is a return of 9.9% over 7d.

W75 Tianjin: Sofia Costoulas vs Shiyu Ye$6k liquidity$20 volumecloses 7d

TennisSportsGames

Trade on Polymarket

BUY YES

Cost: 91.0¢
Implied chance: 91.0%
Return if right: 9.9%
Spread cost: 6%

If you put in $100

You get 109.9 shares at 91.0¢ each.

YES wins: $109.89 back, a profit of $9.89. YES loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $0.61 of that profit. Without it you would make $10.50.

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: 10.0¢
Implied chance: 10.0%
Return if right: 900.0%
Spread cost: 6%

If you put in $100

You get 1000.0 shares at 10.0¢ each.

NO wins: $1000.00 back, a profit of $900.00. NO loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $52.63 of that profit. Without it you would make $952.63.

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 1, 06:04 PM4 further outcomes not shown

Latest news

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Headlines are matched on the names in “W75 Tianjin: Sofia Costoulas vs Shiyu Ye”. 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 Sofia Costoulas and Shiyu Ye in the W75 Tianjin, Main Draw, originally scheduled for September 1, 2026 at 10:00PM ET. This market will resolve to 'Sofia Costoulas' if Sofia Costoulas advances against Shiyu Ye. This market will resolve to 'Shiyu Ye' if Shiyu Ye advances against Sofia Costoulas. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 15, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the International Tennis Federation (ITF). A consensus of credible reporting may also be used.

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