Guillermo Rivera Aranguiz defeated Mauricio Echazu 4-6 6-4 6-4 in the Chile F13 qualifying round on clay. Guillermo Rivera Aranguiz extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-08-27 | Ecuador F3 | SF | clay | Mauricio Echazu | 6-2 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. ATP, WTA & Challenger.