Kei Nishikori defeated Joao Sousa 6-1 6-4 in the Buenos Aires quarter-final on clay. The result followed the form book — Kei Nishikori came in leading the head-to-head 2–1. Kei Nishikori extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-10-04 | Indian Wells Masters | R128 | hard | Kei Nishikori | 6-7(5) 6-3 6-2 |
| 2019-01-14 | Australian Open | R32 | hard | Kei Nishikori | 7-6(6) 6-1 6-2 |
| 2016-10-03 | Tokyo | R16 | hard | Joao Sousa | 3-4 RET |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About