- US Open WTA (Doubles): Kostyuk/Ruse vs Mertens/Shnaider50¢
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.
Mertens and Shnaider, the eighth seeds with strong combined doubles rankings and prior Grand Slam success as a pairing, advanced comfortably through their opening-round match at the 2026 US Open. Kostyuk, a top-15 singles player focused primarily on individual events, and Ruse reached the second round after defeating Udvardy and Pigossi. Both teams enter on recent hard-court form from the North American swing, where Mertens/Shnaider posted consistent results in Toronto. Surface speed and the best-of-three format favor established doubles specialists over singles-oriented pairs, though Kostyuk’s athleticism and recent match wins provide competitive upside in rallies. No major injuries or withdrawals have been reported for either side heading into their next encounter.