Coco Gauff enters her final Group 1 match against Marta Kostyuk at the 2026 WTA Finals in Indian Wells needing a victory to preserve slim semifinal hopes, while the Ukrainian is already eliminated after straight-sets losses to Linda Noskova and Jessica Pegula. Gauff leads the head-to-head 4-2, including a dominant 6-2, 6-2 hard-court win over Kostyuk in Cincinnati three months ago, and holds the stronger recent form on the surface despite her own 3-6, 3-6 defeat to Noskova. Kostyuk has struggled with serve consistency, posting multiple double faults and failing to win a set in California, compounded by a right-wrist issue that limited her preparation as a late alternate. The outdoor hard-court conditions at Indian Wells favor Gauff’s movement and baseline aggression in what shapes up as a lopsided matchup on paper.
This market refers to the tennis match between Marta Kostyuk and Coco Gauff in the WTA Finals, Group A, originally scheduled for November 10, 2026 at 1:00PM ET. This market will resolve to 'Marta Kostyuk' if Marta Kostyuk advances against Coco Gauff. This market will resolve to 'Coco Gauff' if Coco Gauff 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 November 24, 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.