Kei Nishikori defeated Sam Groth 6-4 6-3 7-5 in the Wimbledon round of 128 on grass. The result followed the form book — Kei Nishikori came in leading the head-to-head 1–0, defending last year's round of 64. Kei Nishikori extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-08-03 | Washington | QF | hard | Kei Nishikori | 6-4 6-4 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (200 vs 97). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About