01/By surface
each with its own count, at equal weight
Hard
3-0
M. 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, M. first |
|---|---|---|---|---|---|---|
| Mar 7, 2025 | BNP Paribas OpenMasters 1000 | hard | 2nd round | Berrettini M. | 6-2, 7-6 | 29 v 75 |
| Feb 26, 2025 | Dubai Tennis ChampionshipsATP500 | hard | 2nd round | Berrettini M. | 7-6, 6-2 | 30 v 75 |
| Oct 3, 2024 | Shanghai MastersMasters 1000 | hard | 1st round | Berrettini M. | 7-6, 7-6 | 44 v 71 |
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. Berrettini M. and O Connell C. each carry the table against every opponent faced.