Head to head
2
Hard
1
0
Grass
1
Gilles Muller's wins on the left · John Millman's on the right · bar lengths share one scale
All meetings (4)
| 2018 | Eastbourne | Grass | R32 | John Millman | 6-7(5) 6-3 6-2 |
| 2018 | Sydney | Hard | R16 | Gilles Muller | 7-6(5) 6-4 |
| 2016 | Australian Open | Hard | R64 | John Millman | 4-6 6-4 6-2 4-6 7-5 |
| 2015 | Stockholm | Hard | R16 | Gilles Muller | 7-5 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.