Guillermo Rivera Aranguiz defeated Vicente Bronstein 6-3 6-2 in the Ecuador F3 round of 32 on clay. The result followed the form book — Guillermo Rivera Aranguiz came in leading the head-to-head 1–0. Guillermo Rivera Aranguiz extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-12-10 | Chile F15 | R32 | clay | Guillermo Rivera Aranguiz | 6-4 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.