Federico Delbonis defeated Mischa Zverev 6-1 2-6 7-6 in the Madrid Masters round of 64 on clay. The upset overturned the form book — Mischa Zverev came in leading the head-to-head 2–1, defending last year's round of 64, but Federico Delbonis had been the form player, winning 2 of their last 4 on clay. Federico Delbonis narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-05-14 | Rome Masters | Q2 | clay | Federico Delbonis | 3-6 6-3 6-4 |
| 2015-10-26 | Valencia | Q1 | hard | Mischa Zverev | 6-2 6-0 |
| 2015-10-24 | Valencia | Q32 | hard | Mischa Zverev | 6-2 6-0 |
Averages over each player's completed matches in the selected window (200 vs 107). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About