Head to head
2
Hard
2
John Isner's wins on the left · Mikhail Youzhny's on the right · bar lengths share one scale
All meetings (4)
| 2018 | Miami Masters | Hard | R32 | John Isner | 6-4 6-3 |
| 2015 | US Open | Hard | R64 | John Isner | 6-3 6-4 6-4 |
| 2010 | US Open | Hard | R32 | Mikhail Youzhny | 6-4 6-7(7) 7-6(5) 6-4 |
| 2009 | Canada Masters | Hard | R32 | Mikhail Youzhny | 6-7(8) 6-1 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.