Florian Mayer defeated Nikolay Davydenko 6-3 4-6 7-6 6-4 in the Australian Open round of 128 on hard. The upset overturned the form book — Nikolay Davydenko came in leading the head-to-head 5–2, defending last year's quarter-final. Florian Mayer narrowed the head-to-head to 5–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-07-15 | Hamburg | R64 | clay | Florian Mayer | 6-1 6-3 |
| 2013-02-11 | Rotterdam | R32 | hard | Nikolay Davydenko | 6-3 6-2 |
| 2012-08-12 | Cincinnati Masters | R32 | hard | Nikolay Davydenko | 6-3 6-3 |
| 2011-04-24 | Munich | F | clay | Nikolay Davydenko | 6-3 3-6 6-1 |
| 2010-10-04 | Beijing | R32 | hard | Nikolay Davydenko | 6-3 6-4 |
| 2007-06-11 | Halle | R16 | grass | Florian Mayer | 6-4 6-4 |
| 2006-07-31 | Sopot | F | clay | Nikolay Davydenko | 7-6(6) 5-7 6-4 |
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 156). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About