United Kingdom: Wimbledon - Singles - Qualification |
| Final | Virtanen O. | Burruchaga R. A. | 3:1 (6:1, 6:2, 5:7, 7:64) | details | 27.06.2024 |
| Semi-finals | Ritschard A. | Virtanen O. | 1:2 (7:61, 5:7, 4:6) | details | 26.06.2024 |
| Quarter-finals | Virtanen O. | Agamenone F. | 2:1 (66:7, 6:2, 7:66) | details | 24.06.2024 |
United Kingdom: London - Singles - Qualification |
| Semi-finals | Popyrin A. | Virtanen O. | 2:0 (6:4, 6:4) | details | 16.06.2024 |
Netherlands: Hertogenbosch - Singles - Qualification |
| Final | Huesler M. | Virtanen O. | 2:0 (7:63, 7:64) | details | 09.06.2024 |
| Semi-finals | Virtanen O. | Svajda Z. | 2:1 (4:6, 6:4, 7:64) | details | 08.06.2024 |
France: French Open - Singles - Main |
| 1/64-finals | Misolic F. | Virtanen O. | 3:2 (4:6, 4:6, 6:3, 6:4, 6:2) | details | 27.05.2024 |
France: French Open - Singles - Qualification |
| Final | Virtanen O. | Zeppieri G. | 0:2 (2:6, 2:6) | details | 23.05.2024 |
| Semi-finals | Thiem D. | Virtanen O. | 0:2 (2:6, 5:7) | details | 22.05.2024 |
| Quarter-finals | Sweeny D. | Virtanen O. | 0:2 (2:6, 3:6) | details | 20.05.2024 |
Italy: Turin 2 - Singles - Qualification |
| Semi-finals | Huesler M. | Virtanen O. | 2:1 (6:3, 3:6, 6:4) | details | 13.05.2024 |
Austria: Mauthausen - Singles - Main |
| 1/8-finals | Virtanen O. | Rehberg M. H. | 1:2 (7:64, 65:7, 5:7) | details | 08.05.2024 |
| 1/16-finals | Virtanen O. | Fanselow S. | 2:0 (6:2, 7:5) | details | 07.05.2024 |
| 1/16-finals | Virtanen O. | Sachko V. | CAN. | details | 06.05.2024 |
France: Aix en Provence - Singles - Qualification |
| Semi-finals | Barrere G. | Virtanen O. | 2:0 (6:2, 6:4) | details | 29.04.2024 |
South Korea: Gwangju - Singles - Main |
| 1/16-finals | Nam Ji S. | Virtanen O. | 2:0 (6:4, 6:3) | details | 16.04.2024 |
South Korea: Busan - Singles - Main |
| 1/16-finals | Hong S. C. | Virtanen O. | 2:0 (6:2, 6:2) | details | 09.04.2024 |
USA: Miami - Singles - Qualification |
| Final | Virtanen O. | Bautista-Agut R. | 1:2 (4:6, 6:4, 4:6) | details | 19.03.2024 |
| Semi-finals | Rodionov J. | Virtanen O. | 1:2 (7:63, 67:7, 2:6) | details | 18.03.2024 |
Switzerland: Lugano - Singles - Main |
| Final | Masur D. | Virtanen O. | 1:2 (7:64, 4:6, 63:7) | details | 10.03.2024 |
| Semi-finals | Molleker R. | Virtanen O. | 0:2 (1:6, 3:6) | details | 09.03.2024 |
| Quarter-finals | Herbert P. | Virtanen O. | 0:2 (3:6, 2:6) | details | 08.03.2024 |
| 1/8-finals | Ilkel C. | Virtanen O. | 0:2 (2:6, 1:6) | details | 07.03.2024 |
| 1/16-finals | Bertola R. | Virtanen O. | 0:2 (5:7, 3:6) | details | 05.03.2024 |
France: Lille - Singles - Main |
| Semi-finals | Rinderknech A. | Virtanen O. | 2:1 (6:4, 4:6, 6:2) | details | 02.03.2024 |
| Quarter-finals | Virtanen O. | Barrere G. | 2:0 (6:2, 6:2) | details | 01.03.2024 |
| 1/8-finals | Blockx A. | Virtanen O. | 0:2 (1:6, 4:6) | details | 29.02.2024 |
| 1/16-finals | Virtanen O. | Otte O. | 2:1 (6:4, 3:6, 6:1) | details | 28.02.2024 |
France: Pau - Singles - Main |
| Final | Riedi L. | Virtanen O. | 0:2 (5:7, 5:7) | details | 25.02.2024 |
| Semi-finals | Nakashima B. | Virtanen O. | 0:2 (4:6, 64:7) | details | 24.02.2024 |
| Quarter-finals | Virtanen O. | Pouille L. | 2:0 (7:65, 7:63) | details | 23.02.2024 |
| 1/8-finals | Paire B. | Virtanen O. | 0:2 (0:6, 63:7) | details | 22.02.2024 |
| 1/16-finals | Lamasine T. | Virtanen O. | 0:2 (5:7, 63:7) | details | 20.02.2024 |
Bahrain: Manama - Singles - Main |
| 1/16-finals | Andreev A. | Virtanen O. | 2:0 (6:1, 6:2) | details | 13.02.2024 |
World: Davis Cup - World Group - Singles - Qualification |
| | Virtanen O. | Sousa J. | CAN. | details | 03.02.2024 |
| | Virtanen O. | Borges N. | 2:0 (6:2, 6:1) | details | 02.02.2024 |
France: Quimper - Singles - Main |
| Quarter-finals | Virtanen O. | Mayot H. | WO. | details | 26.01.2024 |
| 1/8-finals | Virtanen O. | Jacquet K. | 0:1 RET. (1:6, 4:1) | details | 25.01.2024 |
| 1/16-finals | Barrere G. | Virtanen O. | 0:2 (5:7, 4:6) | details | 23.01.2024 |
Spain: Tenerife - Singles - Main |
| 1/8-finals | Maestrelli F. | Virtanen O. | 2:0 (6:4, 6:1) | details | 17.01.2024 |
| 1/16-finals | Shelbayh A. | Virtanen O. | 0:2 (4:6, 66:7) | details | 16.01.2024 |
Australia: Australian Open - Singles - Qualification |
| Quarter-finals | Virtanen O. | Vavassori A. | 0:2 (0:6, 3:6) | details | 09.01.2024 |
Hong Kong: Hong Kong - Singles - Qualification |
| Final | Virtanen O. | Huesler M. | 0:2 (2:6, 0:6) | details | 01.01.2024 |
| Semi-finals | Munar J. | Virtanen O. | 1:2 (6:3, 3:6, 4:6) | details | 31.12.2023 |
World: Davis Cup - World Group - Singles - Play Offs |
| | Virtanen O. | Popyrin A. | 0:2 (65:7, 2:6) | details | 24.11.2023 |
| | Diallo G. | Virtanen O. | 0:2 (4:6, 5:7) | details | 21.11.2023 |