Marc Sieber defeated Bastian Knittel 4-6 6-3 6-4 in the Austria F2 round of 16 on carpet. The result followed the form book — Marc Sieber came in leading the head-to-head 2–0. Marc Sieber extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-09-21 | Bosnia & Herzegovina F5 | F | clay | Marc Sieber | 7-5 7-5 |
| 2009-09-07 | Germany F17B | F | clay | Marc Sieber | 6-2 6-4 |
Averages over each player's completed matches in the selected window (141 vs 5). 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