Juan Manuel La Serna defeated Guido Ivan Justo 7-6 2-6 6-2 in the Sao Leopoldo CH round of 32 on clay. The upset overturned the form book — Guido Ivan Justo came in ranked #233, leading the head-to-head 1–0, but Juan Manuel La Serna had been the form player, winning 7 of their last 10 on clay. Juan Manuel La Serna claimed a first win over Guido Ivan Justo in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-06-27 | M25 Rosario-Santa Fe 1 | R32 | clay | Guido Ivan Justo | 6-0 7-6(5) |
Averages over each player's completed matches in the selected window (26 vs 35). ATP, WTA & Challenger.
La Serna J.: 1 day rest · 1 match, 18 games (7d) · Ivan Justo G.: 20 days rest. Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About