Set 1 Winner: Kumasaka vs Sinclair

Q: Set 1 Winner: Kumasaka vs Sinclair

Prediction markets currently price this at 52%. A YES share costs 52.0¢ and pays $1 if it happens. That is a return of 92.3% over 7d.

Astana: Takuya Kumasaka vs Colin Sinclair$26k liquidity$0 volumecloses 7d

TennisSportsGames

Trade on Polymarket

BUY YES

Cost: 52.0¢
Implied chance: 52.0%
Return if right: 92.3%
Spread cost: 4%

If you put in $100

You get 192.3 shares at 52.0¢ each.

YES wins: $192.31 back, a profit of $92.31. YES loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $3.77 of that profit. Without it you would make $96.08.

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: 50.0¢
Implied chance: 50.0%
Return if right: 100.0%
Spread cost: 4%

If you put in $100

You get 200.0 shares at 50.0¢ each.

NO wins: $200.00 back, a profit of $100.00. NO loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $4.08 of that profit. Without it you would make $104.08.

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 11, 09:00 AM4 further outcomes not shown

Latest news

headlines link to their publishers

Sprouts CEO Jack Sinclair Sells 21,576 Shares for $1.9 MillionYahoo Finance · 5d ago

Headlines are matched on the names in “Set 1 Winner: Kumasaka vs Sinclair”. 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 Takuya Kumasaka and Colin Sinclair in the Astana, originally scheduled for August 11, 2026 at 2:30AM ET. This market will resolve to “Kumasaka” if Takuya Kumasaka wins the first set. It will resolve to “Sinclair” if Colin Sinclair wins the first set. If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled (not played at all) or is delayed beyond 7 days from the scheduled date without play beginning, this market will resolve 50-50. Resolution will be based on official Challenger match statistics.

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