Keisuke Saitoh defeated G. J. Kim 4-6 6-1 6-3 in the M15 Yanagawa City 1 round of 32 on hard. Keisuke Saitoh claimed a first win over G. J. Kim in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-11-28 | M15 Gimcheon 2 | QF | hard | G. J. Kim | 6-4 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.