Mariano Zabaleta defeated Nikolay Davydenko 6-4 7-6 in the Kitzbuhel round of 32 on clay. The upset overturned the form book — Nikolay Davydenko came in leading the head-to-head 3–0, defending last year's round of 16, but Mariano Zabaleta had been the form player, winning 2 of their last 5 on clay. Mariano Zabaleta claimed a first win over Nikolay Davydenko in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-04-19 | Monte Carlo Masters | R64 | clay | Nikolay Davydenko | 6-2 6-4 |
| 2002-12-30 | Adelaide | QF | hard | Nikolay Davydenko | 7-6(3) 6-1 |
| 2000-07-17 | Amsterdam | R32 | clay | Nikolay Davydenko | 3-6 6-2 7-6(7) |
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 (67 vs 200). ATP, WTA & Challenger.