Karlis Lejnieks defeated Juan Miguel Such Perez 6-2 6-3 in the Spain F15 qualifying round on hard. The upset overturned the form book — Juan Miguel Such Perez came in leading the head-to-head 1–0. Karlis Lejnieks claimed a first win over Juan Miguel Such Perez in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-11-28 | Spain F34 | R32 | clay | Juan Miguel Such Perez | 7-6(4) 1-6 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.