Leo Vithoontien defeated Kazuki Nishiwaki 6-2 6-3 in the M15 Nishi-Tokyo 1 round of 32 on hard. Leo Vithoontien extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-04-23 | M15 Osaka 2 | R32 | hard | Leo Vithoontien | 6-3 2-6 6-4 |
| 2023-09-21 | M25 Takasaki 1 | R16 | hard | Kazuki Nishiwaki | 5-7 6-4 6-4 |
Averages over each player's completed matches in the selected window (119 vs 50). 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