Leonardo Mayer defeated Albert Ramos 6-3 6-2 in the Hamburg round of 32 on clay. The upset overturned the form book — Albert Ramos came in leading the head-to-head 5–3, defending last year's round of 32. Leonardo Mayer narrowed the head-to-head to 5–4.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2020-02-10 | Buenos Aires | R32 | clay | Albert Ramos | 4-6 6-3 7-5 |
| 2017-07-24 | Hamburg | R32 | clay | Leonardo Mayer | 6-7(3) 6-3 7-6(4) |
| 2017-02-13 | Buenos Aires | R16 | clay | Albert Ramos | 6-7(4) 7-6(3) 1-0 RET |
| 2015-02-09 | Sao Paulo | R16 | clay | Leonardo Mayer | 6-4 3-6 6-1 |
| 2014-02-17 | Rio de Janeiro | R32 | clay | Albert Ramos | 6-2 6-0 |
| 2013-07-22 | Umag | R32 | clay | Leonardo Mayer | 6-1 6-3 |
| 2013-02-18 | Buenos Aires | R16 | clay | Albert Ramos | 6-3 7-6(3) |
| 2011-01-31 | Santiago | R32 | clay | Albert Ramos | 6-4 6-4 |
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 (128 vs 200). ATP, WTA & Challenger.