Florian Mayer defeated Grega Zemlja 6-2 6-2 in the Portoroz CH semi-final on hard. The upset overturned the form book — Grega Zemlja came in leading the head-to-head 1–0, defending last year's final. Florian Mayer claimed a first win over Grega Zemlja in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-03-20 | Miami Masters | R64 | hard | Grega Zemlja | 6-3 7-6(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 (117 vs 71). ATP, WTA & Challenger.