Issei Okamura defeated Ti Chen 6-2 7-5 in the M15 Anning 2 round of 32 on clay. The upset overturned the form book — Ti Chen came in leading the head-to-head 1–0. Issei Okamura claimed a first win over Ti Chen in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-08-22 | Thailand F1 | QF | hard | Ti Chen | 6-1 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.