Guillermo Rivera Aranguiz defeated Diego Alvarez 6-4 7-6 in the Chile F2 qualifying round 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 |
|---|---|---|---|---|---|
| 2009-10-12 | Chile F2 | QF | clay | Guillermo Rivera Aranguiz | 6-7(3) 7-6(4) 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.