Head to head
Rivalry summary
Nikolay Davydenko and Sam Querrey met 2 times on the ATP tour between 2007 and 2009. Their head-to-head is level at 1–1. By surface, they are level 1–1 on hard.
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Hard
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Nikolay Davydenko's wins on the left · Sam Querrey's on the right · bar lengths share one scale
All meetings (2)
| 2009 | New Haven | Hard | QF | Sam Querrey | 6-3 3-6 6-4 |
| 2007 | Indian Wells Masters | Hard | R64 | Nikolay Davydenko | 2-6 7-6(6) 6-2 |
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.