Head to head
7
Hard
0
Kei Nishikori's wins on the left · Donald Young's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (7)
| 2018 | Washington | Hard | R32 | Kei Nishikori | 6-3 6-4 |
| 2017 | Washington | Hard | R32 | Kei Nishikori | 6-3 4-6 7-6(5) |
| 2017 | Indian Wells Masters | Hard | R16 | Kei Nishikori | 6-2 6-4 |
| 2016 | Tokyo | Hard | R32 | Kei Nishikori | 4-6 6-2 6-2 |
| 2014 | Tokyo | Hard | R16 | Kei Nishikori | 6-4 7-6(4) |
| 2014 | Australian Open | Hard | R32 | Kei Nishikori | 7-5 6-1 6-0 |
| 2013 | Memphis | Hard | R16 | Kei Nishikori | 6-3 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.