Shuichi Sekiguchi defeated Yasutaka Uchiyama 6-2 6-2 in the Japan F6 qualifying round on grass. The upset overturned the form book — Yasutaka Uchiyama came in leading the head-to-head 5–1. Shuichi Sekiguchi narrowed the head-to-head to 5–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-05-30 | Japan F6 | SF | clay | Yasutaka Uchiyama | 6-3 6-3 |
| 2014-11-24 | Thailand F10 | R16 | hard | Yasutaka Uchiyama | 4-6 7-5 6-2 |
| 2013-06-24 | Japan F7 | F | clay | Shuichi Sekiguchi | 6-4 2-6 7-5 |
| 2013-03-11 | Japan F1 | QF | hard | Yasutaka Uchiyama | 7-6(0) 6-7(3) 6-1 |
| 2011-06-27 | Japan F8 | R32 | clay | Yasutaka Uchiyama | 7-6(6) 6-3 |
| 2010-04-05 | Japan F4 | F | hard | Yasutaka Uchiyama | 7-5 6-1 |
Averages over each player's completed matches in the selected window (200 vs 199). 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