Chin Wei Chan defeated Sheng Nan Sun 6-2 1-6 6-2 in the Goyang 25K round of 16 on hard. The upset overturned the form book — Sheng Nan Sun came in leading the head-to-head 2–0, but Chin Wei Chan had been the form player, winning 6 of their last 8 on hard. Chin Wei Chan claimed a first win over Sheng Nan Sun in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-04-22 | Wenshan 50K | R16 | hard | Sheng Nan Sun | 6-1 6-0 |
| 2012-01-02 | Quanzhou 50K | QF | hard | Sheng Nan Sun | 6-1 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.