Head to head
1
Hard
0
1
Grass
0
Kei Nishikori's wins on the left · Sam Groth's on the right · bar lengths share one scale
All meetings (2)
| 2016 | Wimbledon | Grass | R128 | Kei Nishikori | 6-4 6-3 7-5 |
| 2015 | Washington | Hard | QF | Kei Nishikori | 6-4 6-4 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.