Head to head
1
Hard
0
1
Grass
0
Kei Nishikori's wins on the left · Thiago Monteiro's on the right · bar lengths share one scale
All meetings (2)
| 2025 | Australian Open | Hard | R128 | Kei Nishikori | 4-6 6-7(4) 7-5 6-2 6-3 |
| 2019 | Wimbledon | Grass | R128 | Kei Nishikori | 6-4 7-6(3) 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.