Qiang Wang defeated Aki Yamasoto 6-3 6-2 in the Niigata 25K round of 16 on hard. The result followed the form book — Qiang Wang came in leading the head-to-head 2–1. Qiang Wang extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-10-17 | Makinohara 25K | QF | carpet | Aki Yamasoto | 6-2 6-1 |
| 2010-09-13 | Kyoto 10K | R32 | carpet | Qiang Wang | 7-5 6-7(4) 6-2 |
| 2009-06-08 | Tokyo 10K | R32 | hard | Qiang Wang | 7-5 7-6(4) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.