Leonardo Mayer defeated Thomaz Bellucci 6-4 6-3 1-6 6-3 in the Davis Cup WG R1: ARG vs BRA round robin on clay. The upset overturned the form book — Thomaz Bellucci came in leading the head-to-head 3–1, but Leonardo Mayer had been the form player, winning 1 of their last 4 on clay. Leonardo Mayer narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-02-13 | Sao Paulo | QF | clay | Thomaz Bellucci | 3-6 6-2 7-5 |
| 2010-05-16 | Nice | R16 | clay | Leonardo Mayer | 6-4 6-1 |
| 2010-04-25 | Rome Masters | R64 | clay | Thomaz Bellucci | 6-4 3-6 6-1 |
| 2009-10-19 | Stockholm | R16 | hard | Thomaz Bellucci | 7-5 3-6 6-3 |
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