Attila Balazs defeated Marc Sieber 6-1 6-3 in the Croatia F3 semi-final on clay. Attila Balazs extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-06-27 | Germany F7 | R16 | clay | Attila Balazs | 6-3 6-4 |
| 2008-10-20 | Croatia F11 | R16 | clay | Marc Sieber | 6-3 4-6 6-1 |
Averages over each player's completed matches in the selected window (200 vs 141). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About