Shuichi Sekiguchi defeated Arata Onozawa 6-4 6-4 in the Japan F4 round of 32 on hard. The result followed the form book — Shuichi Sekiguchi came in leading the head-to-head 5–0. Shuichi Sekiguchi extended the head-to-head to 6–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-08-12 | China F7 | R16 | hard | Shuichi Sekiguchi | 1-0 |
| 2013-06-24 | Japan F7 | SF | clay | Shuichi Sekiguchi | 6-2 |
| 2013-04-29 | Israel F8 | R32 | hard | Shuichi Sekiguchi | 6-3 7-5 |
| 2012-02-27 | India F2 | QF | hard | Shuichi Sekiguchi | 6-4 6-4 |
| 2011-06-20 | Japan F7 | R16 | grass | Shuichi Sekiguchi | 7-5 |
Averages over each player's completed matches in the selected window (160 vs 8). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About