Gauff bests Pegula in thrilling clash, Noskova beats Kostyuk in WTA Finals

Coco Gauff beat fellow American Jessica Pegula in three sets on the opening day of round-robin play at the WTA Finals, while Linda Noskova defeated Marta Kostyuk in straight sets. The results gave Gauff and Noskova winning starts at the season-ending tournament.

Gauff won 6-4, 6-7(5), 6-2 after saving several set points in a close second set before Pegula took the tie-break. Eighth-ranked Noskova won 6-2, 6-4, hitting 20 winners in her WTA Finals debut. Kostyuk entered the draw as a late replacement for Elena Rybakina, who withdrew due to illness.