Masaki Sasai defeated Issei Okamura 6-1 6-2 in the Japan F1 q16 on hard. Masaki Sasai extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-03-16 | Japan F2 | Q16 | hard | Masaki Sasai | 6-3 6-0 |
| 2014-03-31 | Japan F4 | R16 | hard | Issei Okamura | 6-3 6-3 |
Averages over each player's completed matches in the selected window (12 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