Alexander Sadecky defeated Stefan Seifert 7-6 7-5 in the Switzerland F3 qualifying round on carpet. The upset overturned the form book — Stefan Seifert came in leading the head-to-head 2–0. Alexander Sadecky claimed a first win over Stefan Seifert in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-09-24 | Germany F17 | QF | carpet | Stefan Seifert | 7-5 6-4 |
| 2007-10-08 | Germany F19 | R16 | hard | Stefan Seifert | 6-3 6-2 |
Averages over each player's completed matches in the selected window (4 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