Bastian Malla defeated Guillermo Rivera Aranguiz 7-6 6-7 6-2 in the Santiago CH round of 32 on clay. The upset overturned the form book — Guillermo Rivera Aranguiz came in leading the head-to-head 1–0, but Bastian Malla had been the form player, winning 6 of their last 10 on clay. Bastian Malla claimed a first win over Guillermo Rivera Aranguiz in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-06-04 | Chile F7 | R16 | clay | Guillermo Rivera Aranguiz | 6-2 6-1 |
Averages over each player's completed matches in the selected window (200 vs 32). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About