Head to head
Rivalry summary
Kei Nishikori and Billy Harris met 1 times on the ATP tour between 2025 and 2025. Kei Nishikori leads the head-to-head 1–0 against Billy Harris.
1
Hard
0
Kei Nishikori's wins on the left · Billy Harris's on the right · bar lengths share one scale
All meetings (1)
| 2025 | Davis Cup QLS R1: JPN vs GBR | Hard | RR | Kei Nishikori | 6-2 6-3 |
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.