Guillermo Rivera Aranguiz defeated Duilio Beretta 6-2 6-4 in the Chile F4 round of 16 on clay. The upset overturned the form book — Duilio Beretta came in leading the head-to-head 2–0. Guillermo Rivera Aranguiz claimed a first win over Duilio Beretta in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-11-23 | Peru F5 | QF | clay | Duilio Beretta | 6-3 3-1 |
| 2015-04-06 | Chile F3 | R16 | clay | Duilio Beretta | 6-4 7-6(3) |
Averages over each player's completed matches in the selected window (35 vs 12). 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