Daisuke Sumizawa defeated Makoto Ochi 6-3 4-6 7-5 in the M15 Wuning 2 round of 16 on hard. The result followed the form book — Daisuke Sumizawa came in ranked #1055, leading the head-to-head 1–0. Daisuke Sumizawa extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-03-29 | M25 Tsukuba 1 | R32 | hard | Daisuke Sumizawa | 1-6 7-5 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.