Pei Chi Lee defeated Chang Liu 6-1 0-6 6-3 in the W15 Nonthaburi 2 quarter-final on hard. The upset overturned the form book — Chang Liu came in leading the head-to-head 1–0. Pei Chi Lee claimed a first win over Chang Liu in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-02-28 | W15 Nanchang 2 | R16 | clay | Chang Liu | 6-4 6-1 |