
Horacio Zeballos defeated Gael Monfils 6-3 3-6 6-3 in the Sao Paulo round of 16 on clay. The upset overturned the form book — Gael Monfils came in leading the head-to-head 1–0. Horacio Zeballos claimed a first win over Gael Monfils in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-02-19 | Rio de Janeiro | R32 | clay | Gael Monfils | 7-5 3-6 7-5 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (30 vs 199). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About