Guillermo Rivera Aranguiz defeated Ignacio Lehyt 6-1 6-2 in the Chile F6 round of 16 on clay. The result followed the form book — Guillermo Rivera Aranguiz came in leading the head-to-head 2–0. Guillermo Rivera Aranguiz extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-07-04 | Chile F6 | R16 | clay | Guillermo Rivera Aranguiz | 7-6(3) 6-4 |
| 2010-11-15 | Chile F5 | R32 | clay | Guillermo Rivera Aranguiz | 6-2 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.