Overview
- Top seed Aryna Sabalenka defeated Jasmine Paolini 6-3, 6-1 behind a double‑digit ace tally to begin her bid for a first Finals title.
- Iga Swiatek swept past Australian Open champion Madison Keys 6-1, 6-2 for a winning start in the Serena Williams Group.
- Elena Rybakina beat Amanda Anisimova 6-3, 6-1 after clinching the final qualification spot with a late-season surge that included a Ningbo title.
- Defending champion Coco Gauff faces Jessica Pegula later on Sunday in the Steffi Graf Group that also includes Sabalenka and Paolini.
- Sabalenka has already secured the year-end No. 1 ranking as the eight-player event runs November 1–8 with all four 2025 Grand Slam winners in the field.