Head to head
7
Hard
3
0
Grass
1
Kei Nishikori's wins on the left · Sam Querrey's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (11)
| 2021 | Washington | Hard | R64 | Kei Nishikori | 6-4 6-3 |
| 2018 | Shanghai Masters | Hard | R16 | Kei Nishikori | 7-6(7) 6-4 |
| 2016 | Acapulco | Hard | R16 | Sam Querrey | 6-4 6-3 |
| 2016 | Memphis | Hard | SF | Kei Nishikori | 3-6 6-3 6-3 |
| 2015 | Tokyo | Hard | R16 | Kei Nishikori | 7-6(3) 6-3 |
| 2015 | Memphis | Hard | SF | Kei Nishikori | 5-7 7-6(5) 7-6(5) |
| 2014 | Washington | Hard | R32 | Kei Nishikori | 6-4 5-7 6-4 |
| 2012 | Shanghai Masters | Hard | R32 | Sam Querrey | 2-6 6-1 6-4 |
| 2012 | Canada Masters | Hard | R32 | Sam Querrey | 6-2 6-3 |
| 2011 | Queen's Club | Grass | R64 | Sam Querrey | 6-3 6-4 |
| 2008 | Delray Beach | Hard | SF | Kei Nishikori | 4-6 6-2 7-6(7) |
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.