Qatar: Doha - Singles - Main |
| 1/8-finals | O'Connell C. | Draper J. | 0:2 (2:6, 1:6) | dettagli | 19.02.2025 |
| 1/16-finals | O'Connell C. | Habib H. | 2:0 (7:67, 7:63) | dettagli | 17.02.2025 |
Qatar: Doha - Singles - Qualification |
| Final | O'Connell C. | Kotov P. | 2:0 (6:4, 6:2) | dettagli | 16.02.2025 |
| Semi-finals | O'Connell C. | Watanuki Y. | 2:1 (63:7, 7:64, 6:3) | dettagli | 15.02.2025 |
Australia: Australian Open - Singles - Main |
| 1/64-finals | O'Connell C. | Paul T. | 2:3 (2:6, 6:3, 1:6, 7:65, 5:7) | dettagli | 13.01.2025 |
Australia: Adelaide - Singles - Main |
| 1/8-finals | Kecmanovic M. | O'Connell C. | 2:0 (7:61, 6:2) | dettagli | 08.01.2025 |
| 1/16-finals | Rinderknech A. | O'Connell C. | 0:2 (5:7, 65:7) | dettagli | 06.01.2025 |
Australia: Brisbane - Singles - Main |
| 1/16-finals | Michelsen A. | O'Connell C. | 2:1 (6:4, 4:6, 7:610) | dettagli | 30.12.2024 |
Serbia: Belgrade 2 - Singles - Main |
| Quarter-finals | O'Connell C. | Shapovalov D. | 0:2 (2:6, 2:6) | dettagli | 07.11.2024 |
| 1/8-finals | Altmaier D. | O'Connell C. | 0:2 (3:6, 1:6) | dettagli | 06.11.2024 |
| 1/16-finals | Kecmanovic M. | O'Connell C. | 0:2 (1:6, 1:6) | dettagli | 04.11.2024 |
France: Paris - Singles - Main |
| 1/32-finals | Khachanov K. | O'Connell C. | 2:1 (6:4, 3:6, 7:66) | dettagli | 29.10.2024 |
France: Paris - Singles - Qualification |
| Final | O'Connell C. | Davidovich Fokina A. | 1:2 (3:6, 6:4, 3:6) | dettagli | 27.10.2024 |
| Semi-finals | Nagal S. | O'Connell C. | 0:2 (4:6, 63:7) | dettagli | 26.10.2024 |
| Semi-finals | Martinez P. | O'Connell C. | CAN. | dettagli | 26.10.2024 |
Switzerland: Basel - Singles - Qualification |
| Semi-finals | Fearnley J. | O'Connell C. | 2:1 (6:4, 1:6, 6:4) | dettagli | 19.10.2024 |
Kazakhstan: Almaty - Singles - Main |
| 1/16-finals | O'Connell C. | Diallo G. | 0:2 (65:7, 2:6) | dettagli | 15.10.2024 |
China: Shanghai - Singles - Main |
| 1/64-finals | O'Connell C. | Berrettini M. | 0:2 (69:7, 66:7) | dettagli | 03.10.2024 |
Japan: Tokyo - Singles - Main |
| 1/8-finals | O'Connell C. | Michelsen A. | 0:2 (1:6, 4:6) | dettagli | 28.09.2024 |
| 1/16-finals | Etcheverry T. M. | O'Connell C. | 0:2 (4:6, 65:7) | dettagli | 26.09.2024 |
Japan: Tokyo - Singles - Qualification |
| Final | Daniel T. | O'Connell C. | 0:2 (3:6, 5:7) | dettagli | 24.09.2024 |
| Semi-finals | Virtanen O. | O'Connell C. | 0:2 (4:6, 4:6) | dettagli | 23.09.2024 |
China: Chengdu - Singles - Main |
| 1/8-finals | Musetti L. | O'Connell C. | 2:1 (65:7, 6:4, 7:64) | dettagli | 21.09.2024 |
| 1/16-finals | Kotov P. | O'Connell C. | 0:2 (4:6, 5:7) | dettagli | 19.09.2024 |
China: Guangzhou 2 - Singles - Main |
| Final | O'Connell C. | Shimabukuro S. | 2:1 (1:6, 7:5, 7:65) | dettagli | 15.09.2024 |
| Semi-finals | O'Connell C. | Kukushkin M. | 2:0 (6:4, 6:2) | dettagli | 14.09.2024 |
| Quarter-finals | O'Connell C. | Albot R. | 2:1 (6:4, 66:7, 6:3) | dettagli | 13.09.2024 |
| 1/8-finals | O'Connell C. | Mo Y. C. | 1:0 RET. (6:2, 2:1) | dettagli | 12.09.2024 |
| 1/16-finals | O'Connell C. | Lamasine T. | 2:0 (6:3, 6:2) | dettagli | 10.09.2024 |
USA: US Open - Singles - Main |
| 1/16-finals | Sinner J. | O'Connell C. | 3:0 (6:1, 6:4, 6:2) | dettagli | 31.08.2024 |
| 1/32-finals | Bellucci M. | O'Connell C. | 1:3 (3:6, 4:6, 6:3, 3:6) | dettagli | 29.08.2024 |
| 1/64-finals | O'Connell C. | Jarry N. | 3:1 (6:4, 6:3, 4:6, 6:3) | dettagli | 28.08.2024 |
USA: Winston-Salem - Singles - Main |
| 1/16-finals | Rinderknech A. | O'Connell C. | 2:0 (6:3, 6:4) | dettagli | 20.08.2024 |
| 1/32-finals | O'Connell C. | Kirchheimer S. | 2:0 (7:5, 6:4) | dettagli | 19.08.2024 |
Canada: Montreal - Singles - Qualification |
| Final | O'Connell C. | Rinderknech A. | 0:0 RET. (1:2) | dettagli | 05.08.2024 |
| Semi-finals | Nishioka Y. | O'Connell C. | 0:2 (5:7, 0:6) | dettagli | 04.08.2024 |
USA: Washington - Singles - Main |
| 1/16-finals | Nakashima B. | O'Connell C. | 2:0 (6:2, 6:2) | dettagli | 30.07.2024 |
| 1/32-finals | O'Connell C. | Mayot H. | 2:0 (6:4, 7:63) | dettagli | 29.07.2024 |
USA: Atlanta - Singles - Main |
| 1/16-finals | O'Connell C. | Purcell M. | 1:2 (6:4, 5:7, 2:6) | dettagli | 24.07.2024 |
United Kingdom: Wimbledon - Singles - Main |
| 1/64-finals | Fritz T. | O'Connell C. | 3:0 (6:1, 6:2, 6:4) | dettagli | 02.07.2024 |
United Kingdom: Surbiton - Singles - Main |
| 1/16-finals | O'Connell C. | Duckworth J. | CAN. | dettagli | 04.06.2024 |
France: French Open - Singles - Main |
| 1/64-finals | Misolic F. | O'Connell C. | CAN. | dettagli | 27.05.2024 |
Italy: Rome - Singles - Main |
| 1/64-finals | Carballes Baena R. | O'Connell C. | 0:1 RET. (67:7, 5:0) | dettagli | 09.05.2024 |
Spain: Madrid - Singles - Main |
| 1/64-finals | O'Connell C. | Arnaldi M. | 0:2 (4:6, 1:6) | dettagli | 25.04.2024 |
Germany: Munich - Singles - Main |
| 1/16-finals | Daniel T. | O'Connell C. | 2:0 (6:3, 6:4) | dettagli | 16.04.2024 |
Monaco: Monte Carlo - Singles - Main |
| 1/32-finals | Tabilo A. | O'Connell C. | 2:0 (6:3, 6:4) | dettagli | 08.04.2024 |
Monaco: Monte Carlo - Singles - Qualification |
| Final | O'Connell C. | Vukic A. | 2:1 (6:2, 3:6, 7:65) | dettagli | 07.04.2024 |