Louk Sorensen defeated Michael Lammer 6-2 6-3 in the Dusseldorf qualifying round 1 on clay. The upset overturned the form book — Michael Lammer came in leading the head-to-head 1–0. Louk Sorensen claimed a first win over Michael Lammer in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-01-24 | Qatar F2 | R32 | hard | Michael Lammer | 7-6(4) 6-4 |
Averages over each player's completed matches in the selected window (36 vs 9). 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