Juan Carlos Saez defeated Nicolas Alberto Arreche 6-2 6-4 in the Chile F10 qualifying round on clay. The upset overturned the form book — Nicolas Alberto Arreche came in leading the head-to-head 1–0. Juan Carlos Saez claimed a first win over Nicolas Alberto Arreche in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-12-04 | Chile F3 | R16 | clay | Nicolas Alberto Arreche | 6-3 6-2 |
Averages over each player's completed matches in the selected window (34 vs 9). 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