Head to head
3
Hard
1
1
Clay
0
Nikolay Davydenko's wins on the left · Tommy Haas's on the right · bar lengths share one scale
All meetings (5)
| 2008 | Canada Masters | Hard | R32 | Nikolay Davydenko | 6-3 7-6(6) |
| 2007 | US Open | Hard | QF | Nikolay Davydenko | 6-3 6-3 6-4 |
| 2007 | Australian Open | Hard | QF | Tommy Haas | 6-3 2-6 1-6 6-1 7-5 |
| 2006 | US Open | Hard | QF | Nikolay Davydenko | 4-6 6-7(3) 6-3 6-4 6-4 |
| 2005 | Roland Garros | Clay | R32 | Nikolay Davydenko | 7-5 6-0 6-0 |
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.