Felix Mantilla defeated Nikolay Davydenko 7-6 6-0 in the Bucharest round of 32 on clay. The upset overturned the form book — Nikolay Davydenko came in leading the head-to-head 1–0, defending last year's round of 32. Felix Mantilla claimed a first win over Nikolay Davydenko in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-05-16 | St. Poelten | QF | clay | Nikolay Davydenko | 6-3 7-5 |
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 (64 vs 200). ATP, WTA & Challenger.