Tai Sach defeated Derek Pham 6-4 7-5 in the M15 Wellington 1 round of 16 on hard. Tai Sach claimed a first win over Derek Pham in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-08-05 | M25 Taipei 2 | Q16 | hard | Derek Pham | 6-4 3-6 10-8 |
| 2022-05-02 | M15 Monastir 17 | Q32 | hard | Derek Pham | 4-6 6-3 15-13 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.