John Millman defeated Federico Delbonis 6-3 3-6 7-6 6-2 in the Australian Open round of 128 on hard. The upset overturned the form book — Federico Delbonis came in leading the head-to-head 2–0, defending last year's round of 128. John Millman claimed a first win over Federico Delbonis in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-03-18 | Miami Masters | R64 | hard | Federico Delbonis | 7-5 3-6 7-6(2) |
| 2018-07-16 | Bastad | R16 | clay | Federico Delbonis | 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 (199 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About