Head to head
2
Hard
1
3
Clay
0
Kei Nishikori's wins on the left · Viktor Troicki's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 2016 | Paris Masters | Hard | R32 | Kei Nishikori | 6-2 7-5 |
| 2016 | Rome Masters | Clay | R32 | Kei Nishikori | 5-7 6-2 6-3 |
| 2015 | Rome Masters | Clay | R16 | Kei Nishikori | 6-4 6-3 |
| 2015 | Miami Masters | Hard | R32 | Kei Nishikori | 6-2 6-2 |
| 2013 | Madrid Masters | Clay | R32 | Kei Nishikori | 7-5 6-2 |
| 2010 | Tokyo | Hard | R32 | Viktor Troicki | 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.