Head to head
1
Hard
3
2
Clay
0
Nikolay Davydenko's wins on the left · John Isner's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 2014 | Indian Wells Masters | Hard | R64 | John Isner | 7-6(5) 6-3 |
| 2012 | Nice | Clay | QF | Nikolay Davydenko | 6-4 7-6(4) |
| 2012 | Miami Masters | Hard | R64 | John Isner | 2-6 6-3 6-4 |
| 2010 | Beijing | Hard | QF | John Isner | 7-6(2) 6-4 |
| 2008 | Poertschach | Clay | R16 | Nikolay Davydenko | 6-2 6-7(6) 6-3 |
| 2008 | Indian Wells Masters | Hard | R64 | Nikolay Davydenko | 6-2 7-6(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.