Ryotaro Matsumura defeated Calvin Thalheimer 6-0 6-0 in the M25 Sapporo 1 q32 on hard. The result followed the form book — Ryotaro Matsumura came in leading the head-to-head 1–0. Ryotaro Matsumura extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-09-08 | M25 Sapporo 2 | Q32 | hard | Ryotaro Matsumura | 6-4 6-1 |