Shuichi Sekiguchi defeated Weerapat Doakmaiklee 2-6 7-6 6-1 in the Japan F1 qualifying round on hard. The result followed the form book — Shuichi Sekiguchi came in leading the head-to-head 2–0. Shuichi Sekiguchi extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-08-16 | Thailand F3 | R32 | hard | Shuichi Sekiguchi | 6-3 6-4 |
| 2010-03-29 | Japan F3 | R16 | hard | Shuichi Sekiguchi | 7-6(5) 2-6 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.