Head to head
1
Hard
1
1
Clay
1
0
Grass
1
Dominic Thiem's wins on the left · Kei Nishikori's on the right · bar lengths share one scale
All meetings (5)
| 2018 | Tour Finals | Hard | RR | Dominic Thiem | 6-1 6-4 |
| 2018 | Vienna | Hard | QF | Kei Nishikori | 6-3 6-1 |
| 2018 | Roland Garros | Clay | R16 | Dominic Thiem | 6-2 6-0 5-7 6-4 |
| 2016 | Rome Masters | Clay | QF | Kei Nishikori | 6-3 7-5 |
| 2015 | Halle | Grass | R32 | Kei Nishikori | 7-6(4) 7-5 |
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.