Marc Sieber defeated Steven Moneke 3-6 6-2 6-1 in the Croatia F3 round of 32 on clay. Marc Sieber extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-07-02 | Germany F8 | R32 | clay | Marc Sieber | 7-6(3) 6-2 |
| 2012-04-02 | Croatia F6 | QF | clay | Steven Moneke | 7-5 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.