Stefan Seifert defeated Kevin Deden 6-3 6-2 in the Germany F4 qualifying round on carpet. The result followed the form book — Stefan Seifert came in leading the head-to-head 5–0. Stefan Seifert extended the head-to-head to 6–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-10-11 | Germany F18 | QF | hard | Stefan Seifert | 6-4 3-0 |
| 2008-07-07 | Germany F10 | QF | clay | Stefan Seifert | 7-6(2) 2-0 |
| 2008-01-14 | Germany F2 | SF | hard | Stefan Seifert | 6-3 6-1 |
| 2005-10-03 | Germany 1 Satellite 4 | R16 | carpet | Stefan Seifert | 6-2 6-4 |
| 2004-10-04 | Germany 1 Satellite 1 | R32 | carpet | Stefan Seifert | 6-3 1-0 |