Joaquin Aguilar Cardozo defeated Gonzalo Villanueva 6-3 4-6 7-6 in the Montevideo CH qualifying round 2 on clay. The upset overturned the form book — Gonzalo Villanueva came in ranked #322, leading the head-to-head 2–1, defending last year's round of 32. Joaquin Aguilar Cardozo narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-08-22 | M15 Asuncion 2 | F | clay | Gonzalo Villanueva | 6-3 6-1 |
| 2026-08-15 | M15 Asuncion | F | clay | Joaquin Aguilar Cardozo | 3-6 6-7(5) |
| 2026-06-17 | Challenger Men - Singles: Asuncion 2 (Paraguay), Clay | R16 | clay | Gonzalo Villanueva | 0-6 5-7 |
Averages over each player's completed matches in the selected window (69 vs 94). 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