Kayla Day is an American professional tennis player whose career archive covers early WTA Tour debuts, ITF Circuit titles, and Challenger-level breakthroughs. News, match reports, and updates tagged here track her 2016 US Open girls’ singles title, 2023 French Open third-round run, and career-high WTA singles ranking of No. 84 reached in April 2024. The archive also documents her continued presence on the ITF and WTA circuits, including her seventh professional singles title at the 2025 Central Coast Pro Tennis Open and her 2026 Indian Wells qualification, providing ongoing coverage of her development under coach Pat Cash.