Rimpei Kawakami defeated Issei Okamura 6-2 6-1 in the M15 Nishi-Tokyo 1 round of 32 on hard. The upset overturned the form book — Issei Okamura came in leading the head-to-head 1–0, but Rimpei Kawakami had been the form player, winning 3 of their last 7 on hard. Rimpei Kawakami claimed a first win over Issei Okamura in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-03-12 | Japan F2 | R32 | hard | Issei Okamura | 6-2 6-4 |
Averages over each player's completed matches in the selected window (11 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