Sargis Sargsian defeated Nikolay Davydenko 6-2 6-4 in the Hamburg Masters round of 64 on clay. The upset overturned the form book — Nikolay Davydenko came in leading the head-to-head 3–1, defending last year's round of 32. Sargis Sargsian narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-07-04 | Gstaad | R32 | clay | Sargis Sargsian | 1-6 0-1 RET |
| 2004-10-11 | Moscow | R16 | hard | Nikolay Davydenko | 6-2 6-4 |
| 2004-05-03 | Rome Masters | R64 | clay | Nikolay Davydenko | 6-2 6-2 |
| 2002-07-22 | Kitzbuhel | R64 | clay | Nikolay Davydenko | 7-6(5) 6-3 |
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 (56 vs 200). ATP, WTA & Challenger.