Chengyiyi Yuan defeated Unknown Player 7-5 3-6 6-1 in the W15 Luan 1 round of 32 on hard. The upset overturned the form book — Unknown Player came in leading the head-to-head 2–0, but Chengyiyi Yuan had been the form player, winning 6 of their last 10 on hard. Chengyiyi Yuan claimed a first win over Unknown Player in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-05-15 | W50 Anning 1 | R32 | clay | Unknown Player | 4-6 6-2 6-4 |
| 2023-09-09 | W15 Shenzhen 1 | SF | hard | Unknown Player | 1-6 6-2 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.