Head to head
1
Hard
1
Kei Nishikori's wins on the left · Pablo Carreno Busta's on the right · bar lengths share one scale
All meetings (3)
| 2021 | Rome Masters | Clay | R32 | Kei Nishikori | W/O |
| 2021 | Australian Open | Hard | R128 | Pablo Carreno Busta | 7-5 7-6(4) 6-2 |
| 2019 | Australian Open | Hard | R16 | Kei Nishikori | 6-7(8) 4-6 7-6(4) 6-4 7-6(8) |
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.