Martin Klizan defeated Federico Delbonis 7-6 7-5 in the Monte Carlo Masters round of 64 on clay. The upset overturned the form book — Federico Delbonis came in leading the head-to-head 3–2, but Martin Klizan had been the form player, winning 7 of their last 9 on clay. Martin Klizan narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2020-02-24 | Santiago | R32 | clay | Federico Delbonis | 6-1 7-6(5) |
| 2018-04-23 | Barcelona | R64 | clay | Martin Klizan | 6-3 6-7(5) 6-4 |
| 2015-02-16 | Rio de Janeiro | R16 | clay | Federico Delbonis | 6-2 6-1 |
| 2014-08-17 | Winston-Salem | R64 | hard | Federico Delbonis | 7-6(5) 6-4 |
| 2014-06-16 | Eastbourne | R32 | grass | Martin Klizan | 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 (131 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About