Soichiro Moritani defeated Shintaro Imai 6-3 6-3 in the Vietnam F4 round of 16 on hard. The upset overturned the form book — Shintaro Imai came in leading the head-to-head 3–0. Soichiro Moritani claimed a first win over Shintaro Imai in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-03-12 | Japan F2 | QF | hard | Shintaro Imai | 6-2 7-5 |
| 2017-05-08 | China F6 | QF | hard | Shintaro Imai | 6-0 6-1 |
| 2016-03-14 | Japan F2 | Q32 | hard | Shintaro Imai | 6-0 6-3 |
Averages over each player's completed matches in the selected window (78 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