Florian Mayer defeated Juan Martin del Potro 6-2 7-5 in the Sydney round of 16 on hard. The upset overturned the form book — Juan Martin del Potro came in leading the head-to-head 3–1. Florian Mayer narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-05-06 | Madrid Masters | R64 | clay | Juan Martin del Potro | 6-4 6-2 |
| 2010-01-18 | Australian Open | R32 | hard | Juan Martin del Potro | 6-3 0-6 6-4 7-5 |
| 2009-01-19 | Australian Open | R64 | hard | Juan Martin del Potro | 6-1 7-5 6-2 |
| 2006-07-17 | Stuttgart | R16 | grass | Florian Mayer | 6-1 6-0 |
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