Nikolay Davydenko defeated Nicolas Kiefer 6-2 6-2 6-2 in the US Open round of 64 on hard. The upset overturned the form book — Nicolas Kiefer came in leading the head-to-head 3–0. Nikolay Davydenko claimed a first win over Nicolas Kiefer in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-07-21 | Canada Masters | R16 | hard | Nicolas Kiefer | 4-6 6-4 6-4 |
| 2008-05-11 | Hamburg Masters | R16 | clay | Nicolas Kiefer | 7-5 6-3 |
| 2005-10-24 | St. Petersburg | QF | carpet | Nicolas Kiefer | 6-1 6-1 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (200 vs 100). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About