Hiroyasu Ehara defeated Shuichi Sekiguchi 6-2 6-2 in the Japan F8 round of 32 on clay. The upset overturned the form book — Shuichi Sekiguchi came in leading the head-to-head 5–0. Hiroyasu Ehara claimed a first win over Shuichi Sekiguchi in six meetings, narrowing the head-to-head to 5–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-06-05 | Japan F7 | R32 | hard | Shuichi Sekiguchi | 6-2 6-1 |
| 2013-06-24 | Japan F7 | QF | clay | Shuichi Sekiguchi | 6-1 2-1 |
| 2012-10-15 | Japan F9 | QF | hard | Shuichi Sekiguchi | 6-0 6-4 |
| 2012-03-26 | Japan F3 | R32 | hard | Shuichi Sekiguchi | 6-2 4-6 7-5 |
| 2010-03-15 | Japan F1 | R16 | hard | Shuichi Sekiguchi | 7-5 6-2 |
Averages over each player's completed matches in the selected window (40 vs 200). 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