- Set 1 Winner: Kostyuk vs Alexandrova68¢
- US Open WTA: Marta Kostyuk vs Ekaterina Alexandrova74¢
- US Open WTA: Completed Match: Marta Kostyuk vs Ekaterina Alexandrova50¢
- Game Spread: Kostyuk (-4.5) vs Alexandrova (+4.5)46¢
- Kostyuk vs. Alexandrova: Set 2 Games O/U 9.550¢
- Kostyuk vs. Alexandrova: Set 2 Games O/U 8.550¢
- Kostyuk vs. Alexandrova: Set 1 Games O/U 8.539¢
- Kostyuk vs. Alexandrova: Match O/U 23.540¢
- Kostyuk vs. Alexandrova: Match O/U 21.548¢
- Set 2 Winner: Kostyuk vs Alexandrova68¢
- Marta Kostyuk vs. Ekaterina Alexandrova: Total Sets O/U 2.536¢
- Set Handicap: Kostyuk (-1.5) vs Alexandrova (+1.5)51¢
This market refers to the tennis match between Marta Kostyuk and Ekaterina Alexandrova in the US Open WTA, originally scheduled for September 4, 2026 at 11:00AM ET. This market will resolve to 'Marta Kostyuk' if Marta Kostyuk advances against Ekaterina Alexandrova. This market will resolve to 'Ekaterina Alexandrova' if Ekaterina Alexandrova advances against Marta Kostyuk. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 18, 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 WTA Tour. A consensus of credible reporting may also be used.
Marta Kostyuk enters the US Open third-round matchup as the higher-ranked player at world No. 11, riding strong 2026 form that includes consecutive Grand Slam semifinals at Roland Garros and Wimbledon plus a Madrid title. She has compiled a 13-6 hard-court record this season and advanced comfortably through her opening matches against Storm Hunter and Sloane Stephens. Ekaterina Alexandrova, the No. 19 seed, holds a 2-0 head-to-head edge but arrives with a mixed 17-21 seasonal record and inconsistent results on hard courts, including early exits in recent tournaments. The hard-court surface at Flushing Meadows favors Kostyuk’s aggressive baseline game and current momentum over Alexandrova’s experience in a contest where recent form and ranking differentials shape trader views.