Marcel Zimmermann defeated Antonio Sancic 7-6 6-2 in the Croatia F1 qualifying round on hard. The result followed the form book — Marcel Zimmermann came in leading the head-to-head 2–0. Marcel Zimmermann extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-03-21 | Croatia F3 | R32 | clay | Marcel Zimmermann | 6-4 6-4 |
| 2009-03-16 | Switzerland F3 | R32 | carpet | Marcel Zimmermann | 6-4 7-6(9) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.