Juan Martin Aranguren defeated Juan Monaco 6-4 6-2 in the Argentina F5 round of 32 on clay. The upset overturned the form book — Juan Monaco came in leading the head-to-head 1–0. Juan Martin Aranguren claimed a first win over Juan Monaco in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-09-29 | Chile F4 | R32 | clay | Juan Monaco | 6-3 6-4 |
Averages over each player's completed matches in the selected window (2 vs 200). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About