Masato Shiga defeated Soichiro Moritani 6-2 6-0 in the Japan F1 q32 on hard. The upset overturned the form book — Soichiro Moritani came in leading the head-to-head 2–1. Masato Shiga narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-03-20 | Japan F3 | R32 | hard | Soichiro Moritani | 6-2 6-2 |
| 2016-07-11 | China F12 | R32 | clay | Soichiro Moritani | 6-2 3-0 |
| 2016-06-06 | Japan F7 | R32 | hard | Masato Shiga | 7-5 6-4 |
Averages over each player's completed matches in the selected window (59 vs 79). 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