Martin Vilarrubi defeated Juan Martin Aranguren 6-3 1-6 6-3 in the Paraguay F2 round of 32 on clay. The upset overturned the form book — Juan Martin Aranguren came in leading the head-to-head 2–1. Martin Vilarrubi narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-01-22 | Colombia F1 | R16 | clay | Juan Martin Aranguren | 6-2 6-4 |
| 2005-09-12 | Uruguay F1 | QF | clay | Juan Martin Aranguren | 6-0 6-2 |
| 2005-05-09 | Argentina F5 | QF | clay | Martin Vilarrubi | 6-3 4-6 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.