Guillermo Rivera Aranguiz defeated Borut Puc 6-0 2-6 6-4 in the Peru F1 round of 32 on clay. The upset overturned the form book — Borut Puc came in leading the head-to-head 1–0. Guillermo Rivera Aranguiz claimed a first win over Borut Puc in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-11-08 | Chile F4 | QF | clay | Borut Puc | 7-6(3) 1-6 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.