Keita Koyama defeated Masato Shiga 4-6 6-4 6-3 in the Japan F5 round of 16 on clay. The result followed the form book — Keita Koyama came in leading the head-to-head 1–0. Keita Koyama extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-03-09 | Japan F1 | R32 | hard | Keita Koyama | 5-7 7-5 6-3 |
Averages over each player's completed matches in the selected window (1 vs 13). 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. Small sample — read as indicative. About