Mauricio Echazu defeated Guillermo Rivera Aranguiz 6-2 6-4 in the Ecuador F3 semi-final on clay. The upset overturned the form book — Guillermo Rivera Aranguiz came in leading the head-to-head 2–0, but Mauricio Echazu had been the form player, winning 2 of their last 4 on clay. Mauricio Echazu claimed a first win over Guillermo Rivera Aranguiz in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-11-26 | Chile F13 | QF | clay | Guillermo Rivera Aranguiz | 4-6 6-4 6-4 |
| 2010-10-18 | Chile F1 | F | clay | Guillermo Rivera Aranguiz | 6-2 4-6 7-5 |
Averages over each player's completed matches in the selected window (135 vs 35). 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