01/By surface
each with its own count, at equal weight
Hard
1-2
G. leads 2-1 in 3 meetings on hard
Clay
0-1
G. leads 1-0 in 1 meeting on clay
Grass
Never on grass
no meeting on this surface
02/Every meeting
4 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, Connell C. first |
|---|---|---|---|---|---|---|
| Feb 25, 2025 | Dubai Tennis ChampionshipsATP500 | hard | 1st round | O Connell C.ret. | 6-0 | 75 v 16 |
| Sep 24, 2023 | Chengdu OpenATP250 | hard | quarterfinal | Dimitrov G. | 6-4, 6-1 | 53 v 20 |
| May 25, 2023 | Geneva OpenATP250 | clay | quarterfinal | Dimitrov G. | 6-7, 7-5, 6-4 | 1125 v 33 |
| Jan 17, 2017 | Australian OpenGrand Slam, best of 5 | hard | 1st round | Dimitrov G. | 7-6, 6-3, 6-3 | 231 v 15 |
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. O Connell C. and Dimitrov G. each carry the table against every opponent faced.