
Leonardo Mayer defeated Thiago Monteiro 6-2 6-3 in the Buenos Aires CH quarter-final on clay. The upset overturned the form book — Thiago Monteiro came in leading the head-to-head 2–0, defending last year's round of 32. Leonardo Mayer claimed a first win over Thiago Monteiro in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2020-02-24 | Santiago | R32 | clay | Thiago Monteiro | 6-7(0) 6-3 6-4 |
| 2020-01-13 | Auckland | Q2 | hard | Thiago Monteiro | 7-6(3) 4-6 6-1 |
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 (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Monteiro T.: 1 day rest · 2 matches, 67 games (7d). Higher means fresher. About