Stefan Wauters defeated Juan Monaco 6-4 3-6 7-5 in the Spain F16 qualifying round on hard. The upset overturned the form book — Juan Monaco came in leading the head-to-head 1–0. Stefan Wauters claimed a first win over Juan Monaco in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-03-17 | Portugal F6 | QF | clay | Juan Monaco | 6-1 3-6 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.