Marc Sieber defeated Jean Zietsman 7-5 2-6 6-1 in the Germany F11 round of 32 on clay. The result followed the form book — Marc Sieber came in leading the head-to-head 1–0. Marc Sieber extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-06-20 | Germany F6 | QF | clay | Marc Sieber | 6-2 2-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.