Shuichi Sekiguchi defeated Jumpei Yamasaki 6-4 6-3 in the M25 Sapporo 1 quarter-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 |
|---|---|---|---|---|---|
| 2023-09-15 | M25 Sapporo 2 | R16 | hard | Shuichi Sekiguchi | 6-3 7-5 |
| 2018-03-19 | Japan F3 | R32 | hard | Shuichi Sekiguchi | 6-7(8) 7-6(3) 6-2 |
Averages over each player's completed matches in the selected window (7 vs 5). 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