Shuichi Sekiguchi defeated Ji Sung Nam 6-3 6-3 in the Korea F4 semi-final 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 |
|---|---|---|---|---|---|
| 2013-08-12 | China F7 | SF | hard | Shuichi Sekiguchi | 5-7 6-1 6-4 |
| 2012-04-09 | Vietnam F2 | R16 | hard | Shuichi Sekiguchi | 6-4 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.