Soichiro Moritani defeated Ko Suzuki 3-6 6-3 6-2 in the Japan F2 round of 32 on hard. The upset overturned the form book — Ko Suzuki came in leading the head-to-head 2–1. Soichiro Moritani narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-08-21 | M15 Hua Hin 1 | R32 | hard | Soichiro Moritani | 6-4 6-4 |
| 2019-06-06 | M15 Guam 1 | QF | hard | Ko Suzuki | 6-3 6-4 |
| 2019-06-01 | M15 Karuizawa 1 | SF | clay | Ko Suzuki | 6-4 6-2 |
Averages over each player's completed matches in the selected window (79 vs 82). 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