Head to head
2
Hard
1
Jack Sock's wins on the left · Kei Nishikori's on the right · bar lengths share one scale
All meetings (3)
| 2017 | Indian Wells Masters | Hard | QF | Jack Sock | 6-3 2-6 6-2 |
| 2014 | Shanghai Masters | Hard | R32 | Jack Sock | 7-6(5) 6-4 |
| 2013 | Washington | Hard | R32 | Kei Nishikori | 7-5 6-2 |
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.