Nikolay Davydenko defeated Andreas Seppi 6-1 6-2 in the Hamburg Masters round of 32 on clay. The upset overturned the form book — Andreas Seppi came in leading the head-to-head 3–2, defending last year's quarter-final. Nikolay Davydenko narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-05-27 | Roland Garros | R128 | clay | Andreas Seppi | 6-3 7-6(5) 7-5 |
| 2011-11-07 | Paris Masters | R64 | hard | Andreas Seppi | 7-6(2) 7-5 |
| 2008-05-18 | Poertschach | QF | clay | Nikolay Davydenko | 6-3 1-6 6-3 |
| 2005-10-03 | Metz | QF | hard | Nikolay Davydenko | 6-3 6-1 |
| 2004-06-07 | Halle | R32 | grass | Andreas Seppi | 7-6(5) 2-6 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 (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About