Takuto Niki defeated Makoto Ochi 6-3 7-6 in the M15 Chiang Rai 3 round of 32 on hard. The upset overturned the form book — Makoto Ochi came in leading the head-to-head 2–1. Takuto Niki narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-03-18 | M15 Sharm El Sheikh 7 | R16 | hard | Makoto Ochi | 6-3 6-2 |
| 2019-03-14 | M15 Nishi-Tokyo 1 | R16 | hard | Takuto Niki | 6-3 3-6 6-1 |
| 2018-04-09 | Japan F6 | R32 | hard | Makoto Ochi | 7-5 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.