Analytics
Resolved Marta Kostyuk on 6 Aug 2026.
The last daily price before settlement had Marta Kostyuk at 44.5%. Yes opened at 50% on 5 Aug 2026. Before it settled, the high was 55.5% on 6 Aug 2026 and the low 50% on 5 Aug 2026. Its largest one-day move was 5.5 points up, to 55.5% on 6 Aug 2026. $985.53K traded over the market's life.
133 wallets still hold shares. Winners redeem theirs after settlement, so what is left is mostly the losing side.
Polymarket record as of Aug 7, 10:41 PM UTC
Daily closes of the Yes price, Polymarket CLOB, 2 points, 5 Aug 2026 – 6 Aug 2026, chart shows 45%–60%
| Observed | Yes price |
|---|---|
| 5 Aug 2026 | 50.0% |
| 6 Aug 2026 | 55.5% |
Winners have redeemed their shares, so most of what is left is the losing side.
| Trader | Outcome | Shares |
|---|---|---|
| ferrariChampions2026 | Madison Keys | 76.16K |
| PAROLIBOYS | Madison Keys | 50.57K |
| AGUGava | Madison Keys | 12.5K |
| CORGII | Madison Keys | 11.4K |
| AV23IUa | Madison Keys | 10K |
| Fuzzy-Patience-Parent | Madison Keys | 8.99K |
| miracle11253dsfd | Madison Keys | 4.6K |
| comon119 | Madison Keys | 4K |
| RanaAmariPredicts | Madison Keys | 3.26K |
| elenaarybakin21 | Madison Keys | 3K |
Every wallet's public record, and 80,000 ranked by lifetime P&L: Polymarket leaderboard
This market refers to the tennis match between Marta Kostyuk and Madison Keys in the National Bank Open, originally scheduled for August 5, 2026 at 11:00AM ET. This market will resolve to 'Marta Kostyuk' if Marta Kostyuk advances against Madison Keys. This market will resolve to 'Madison Keys' if Madison Keys advances against Marta Kostyuk. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 WTA Tour. A consensus of credible reporting may also be used.
Official listing: polymarket.com/event/wta-kostyuk-keys-2026-08-05
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