Naoya Honda defeated T. Adachi 6-0 6-0 in the M25 Sapporo 2 q32 on hard. The result followed the form book — Naoya Honda came in leading the head-to-head 1–0. Naoya Honda extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-09-14 | M25 Takasaki 1 | Q32 | hard | Naoya Honda | 6-1 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.