Daisuke Sumizawa defeated Shunsuke Nakagawa 6-1 6-4 in the M15 Kashiwa 1 qualifying round of 16 on hard. The upset overturned the form book — Shunsuke Nakagawa came in ranked #957, leading the head-to-head 1–0. Daisuke Sumizawa claimed a first win over Shunsuke Nakagawa in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-04-04 | M15 Kashiwa 1 | R16 | hard | Shunsuke Nakagawa | 7-6(5) 2-6 6-2 |
Averages over each player's completed matches in the selected window (35 vs 41). 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