WTA Finals: Coco Gauff beats Jessica Pegula and Linda Noskova beats Marta Kostyuk
Coco Gauff is the number four seed at the WTA Finals

TL;DR
- Coco Gauff defeated Jessica Pegula 6-4, 6-7 (5-7), 6-2 in her opening match at the WTA Finals.
- Linda Noskova beat Marta Kostyuk 6-2, 6-4 in the other opening match.
- Gauff expressed pride in her performance, especially given the lack of preparation.
- Noskova won all four of her break points against Kostyuk.
- The WTA Finals consists of two groups of four players, with the top two from each advancing to the semi-finals.