Ladislav Chramosta defeated Frederik Nielsen 6-3 6-4 in the Zagreb q32 on hard. The upset overturned the form book — Frederik Nielsen came in leading the head-to-head 1–0. Ladislav Chramosta claimed a first win over Frederik Nielsen in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-10-08 | Great Britain F19 | SF | hard | Frederik Nielsen | 7-5 3-6 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.