Head to head
2
Hard
0
1
Grass
0
Kei Nishikori's wins on the left · Leonardo Mayer's on the right · bar lengths share one scale
All meetings (3)
| 2015 | Washington | Hard | R16 | Kei Nishikori | 6-4 6-4 |
| 2014 | US Open | Hard | R32 | Kei Nishikori | 6-4 6-2 6-3 |
| 2013 | Wimbledon | Grass | R64 | Kei Nishikori | 7-6(5) 6-4 6-2 |
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.