Head to head
3
Hard
1
1
Grass
0
Jack Sock's wins on the left · Yoshihito Nishioka's on the right · bar lengths share one scale
All meetings (5)
| 2021 | US Open | Hard | R128 | Jack Sock | 6-7(5) 6-2 6-4 6-2 |
| 2021 | Washington | Hard | R64 | Jack Sock | 6-7(3) 4-0 RET |
| 2021 | Newport | Grass | R16 | Jack Sock | 6-2 6-3 |
| 2017 | Miami Masters | Hard | R64 | Jack Sock | 2-4 RET |
| 2017 | Acapulco | Hard | R32 | Yoshihito Nishioka | 3-6 6-2 6-1 |
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.