Koki Matsuda defeated Keisuke Saitoh 7-5 5-7 6-4 in the Matsuyama CH qualifying round 1 on hard. Koki Matsuda claimed a first win over Keisuke Saitoh in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-09-17 | M25 Takasaki 1 | R32 | hard | Keisuke Saitoh | 6-3 4-6 6-2 |
Averages over each player's completed matches in the selected window (49 vs 42). ATP, WTA & Challenger.
Matsuda K.: 9 days rest · 3 matches (14d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About