01/By surface
each with its own count, at equal weight
Hard
3-0
G. leads 3-0 in 3 meetings on hard
Clay
Never on clay
no meeting on this surface
Grass
Never on grass
no meeting on this surface
02/Every meeting
3 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, G. first |
|---|---|---|---|---|---|---|
| Jan 15, 2018 | Australian OpenGrand Slam, best of 5 | hard | 1st round | Muller G. | 7-5, 6-4, 6-3 | 28 v 67 |
| Oct 28, 2016 | Swiss IndoorsATP500 | hard | quarterfinal | Muller G. | 6-7, 6-4, 7-6 | 37 v 48 |
| Sep 29, 2014 | Rakuten Japan Open Tennis ChampionshipsATP500 | hard | 1st round | Muller G. | 6-3, 6-4 | 58 v 63 |
A record, never a share of meetings. Main-draw singles since 2013; a meeting ended by retirement is counted with the sets that were played and marked; a walkover is listed and counted in neither column. Muller G. and Delbonis F. each carry the table against every opponent faced.