Analytics
Trading is closed with the Kostyuk/Ruse side last at 50%; no result has been reported.
Across the 3 daily closes on record from 5 Sep 2026 to 7 Sep 2026, the highest close was 50% on 5 Sep 2026 and the lowest 49.5% on 6 Sep 2026.
$10.31K has traded since listing.
The largest Kostyuk/Ruse position is mooseborzoi with 0 shares; the largest Mertens/Shnaider position is monsterbet with 98.
Polymarket record as of Sep 7, 8:52 PM UTC
Daily closes of the Kostyuk/Ruse price, Polymarket CLOB, 3 points, 5 Sep 2026 – 7 Sep 2026, chart shows 44%–56%
| Observed | Kostyuk/Ruse price |
|---|---|
| 5 Sep 2026 | 50.0% |
| 7 Sep 2026 | 49.5% |
The ten largest positions on Polymarket's public holder list.
| Trader | Outcome | Shares |
|---|---|---|
| monsterbet | Mertens/Shnaider | 98.04 |
| mooseborzoi | Kostyuk/Ruse | 0.07 |
Open a trader’s name to inspect the wallet’s available P&L, positions and recorded trades, with source dates and coverage. A large position alone does not establish a winning track record.
This market refers to the doubles tennis match between Kostyuk/Ruse and Mertens/Shnaider in the US Open WTA, originally scheduled for September 5, 2026 at 11:00AM ET. This market will resolve to 'Kostyuk/Ruse' if the team of Kostyuk/Ruse advances against Mertens/Shnaider. This market will resolve to 'Mertens/Shnaider' if the team of Mertens/Shnaider advances against Kostyuk/Ruse. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 19, 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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-doubles-kostrus-mertshn-2026-09-05
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