Head to head
2
Hard
1
1
Grass
0
Roger Federer's wins on the left · John Millman's on the right · bar lengths share one scale
All meetings (4)
| 2020 | Australian Open | Hard | R32 | Roger Federer | 4-6 7-6(2) 6-4 4-6 7-6(8) |
| 2019 | Halle | Grass | R32 | Roger Federer | 7-6(1) 6-3 |
| 2018 | US Open | Hard | R16 | John Millman | 3-6 7-5 7-6(7) 7-6(3) |
| 2015 | Brisbane | Hard | R16 | Roger Federer | 4-6 6-4 6-3 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.