Naoki Nakagawa defeated Ryotaro Matsumura 5-7 6-2 6-3 in the M25 Sapporo 1 round of 16 on hard. Naoki Nakagawa extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-07-04 | M15 Tokyo 1 | R16 | hard | Naoki Nakagawa | 7-6(5) 3-6 6-1 |
| 2014-02-17 | El Salvador F1 | R32 | clay | Ryotaro Matsumura | 7-6(2) 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.