Mario Ancic defeated Nikolay Davydenko 7-5 6-4 in the Miami Masters round of 16 on hard. The upset overturned the form book — Nikolay Davydenko came in leading the head-to-head 5–1, defending last year's round of 64. Mario Ancic narrowed the head-to-head to 5–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-05-05 | Rome Masters | R32 | clay | Nikolay Davydenko | 6-2 6-2 |
| 2008-03-27 | Miami Masters | R16 | hard | Nikolay Davydenko | 4-6 6-3 7-5 |
| 2006-10-30 | Paris Masters | QF | hard | Nikolay Davydenko | 6-3 6-3 |
| 2006-05-15 | Hamburg Masters | QF | clay | Mario Ancic | 5-7 7-6(4) 6-3 |
| 2005-09-23 | Davis Cup WG SF: CRO vs RUS | RR | carpet | Nikolay Davydenko | 7-5 6-4 5-7 6-4 |
| 2004-05-17 | St. Poelten | R16 | clay | Nikolay Davydenko | 6-4 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 (162 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About