Head to head
1
Hard
2
0
Clay
1
Joao Sousa's wins on the left · Kei Nishikori's on the right · bar lengths share one scale
All meetings (4)
| 2021 | Indian Wells Masters | Hard | R128 | Kei Nishikori | 6-7(5) 6-3 6-2 |
| 2019 | Australian Open | Hard | R32 | Kei Nishikori | 7-6(6) 6-1 6-2 |
| 2017 | Buenos Aires | Clay | QF | Kei Nishikori | 6-1 6-4 |
| 2016 | Tokyo | Hard | R16 | Joao Sousa | 3-4 RET |
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.