Guido Andreozzi defeated Guillermo Rivera Aranguiz 6-4 6-4 in the Argentina F3 qualifying round on clay. The upset overturned the form book — Guillermo Rivera Aranguiz came in leading the head-to-head 1–0, but Guido Andreozzi had been the form player, winning 5 of their last 8 on clay. Guido Andreozzi claimed a first win over Guillermo Rivera Aranguiz in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-03-28 | Chile F1 | R32 | clay | Guillermo Rivera Aranguiz | 6-4 6-1 |
Averages over each player's completed matches in the selected window (199 vs 34). 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