Lucas Engel defeated Nicolas Santos 3-6 7-5 6-0 in the Brazil F15 qualifying round on clay. The upset overturned the form book — Nicolas Santos came in leading the head-to-head 1–0. Lucas Engel claimed a first win over Nicolas Santos in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-05-21 | Brazil F5 | R32 | clay | Nicolas Santos | 6-2 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.