Mariano Kestelboim defeated Juan Carlos Saez 6-4 6-3 in the Chile F1 semi-final on clay. Mariano Kestelboim extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-03-19 | Tunisia F11 | R32 | clay | Juan Carlos Saez | 6-2 6-3 |
| 2017-09-04 | Argentina F6 | R32 | clay | Mariano Kestelboim | 7-6(3) 4-6 6-4 |
Averages over each player's completed matches in the selected window (118 vs 4). 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