Head to head
4
Hard
0
Kei Nishikori's wins on the left · Gilles Muller's on the right · bar lengths share one scale
All meetings (4)
| 2017 | Indian Wells Masters | Hard | R32 | Kei Nishikori | 6-2 6-2 |
| 2016 | Basel | Hard | SF | Kei Nishikori | 4-6 7-6(3) 6-3 |
| 2011 | Winston-Salem | Hard | R64 | Kei Nishikori | 1-6 6-4 7-6(5) |
| 2009 | San Jose | Hard | R32 | Kei Nishikori | 7-5 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.