Daisuke Sumizawa defeated Ryusuke Horiuchi 6-2 6-2 in the M15 Hinode 1 round of 32 on hard. The upset overturned the form book — Ryusuke Horiuchi came in leading the head-to-head 1–0. Daisuke Sumizawa claimed a first win over Ryusuke Horiuchi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-10-30 | M15 Yanagawa City 1 | R32 | hard | Ryusuke Horiuchi | 6-3 2-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.