Makoto Ochi defeated Jumpei Yamasaki 7-6 6-3 in the M25 Brisbane 1 round of 32 on hard. The upset overturned the form book — Jumpei Yamasaki came in ranked #1038, leading the head-to-head 3–1. Makoto Ochi narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-07-11 | M25 Qujing 1 | R16 | hard | Jumpei Yamasaki | 2-6 6-3 7-6(3) |
| 2019-04-06 | M15 Kashiwa 1 | SF | hard | Jumpei Yamasaki | 5-7 7-6(5) 3-0 |
| 2018-03-26 | Japan F4 | R32 | hard | Makoto Ochi | 6-1 6-2 |
| 2016-10-17 | Chinese Taipei F2 | SF | hard | Jumpei Yamasaki | 4-0 |
Averages over each player's completed matches in the selected window (108 vs 80). 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