Guillermo Rivera Aranguiz defeated Gaston Arturo Grimolizzi 6-3 7-5 in the Argentina F1 round of 32 on clay. The upset overturned the form book — Gaston Arturo Grimolizzi came in leading the head-to-head 1–0. Guillermo Rivera Aranguiz claimed a first win over Gaston Arturo Grimolizzi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-05-16 | Argentina F7 | R32 | clay | Gaston Arturo Grimolizzi | 7-6(5) 0-6 6-4 |
Averages over each player's completed matches in the selected window (35 vs 33). 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