Marc Sieber defeated Stefan Seifert 6-1 6-2 in the Germany F12 round of 32 on clay. Marc Sieber extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-07-28 | Germany F13 | R32 | clay | Marc Sieber | 3-6 6-3 6-3 |
| 2007-06-18 | Germany F6 | R16 | clay | Stefan Seifert | 6-2 6-1 |
Averages over each player's completed matches in the selected window (141 vs 2). 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