United Kingdom: Wimbledon - Singles - Qualification |
| Semi-finals | Banks A. | Day K. | 2:0 (7:66, 6:3) | details | 26.06.2024 |
| Quarter-finals | Shymanovich I. | Day K. | 0:2 (2:6, 1:6) | details | 25.06.2024 |
Germany: Berlin - Singles - Qualification |
| Final | Kudermetova V. | Day K. | 2:0 (6:1, 6:1) | details | 16.06.2024 |
| Semi-finals | Day K. | Rodionova Ar. | 2:0 (6:0, 6:3) | details | 15.06.2024 |
United Kingdom: Nottingham - Singles - Main |
| 1/16-finals | Watson H. | Day K. | 2:1 (4:6, 6:0, 6:4) | details | 10.06.2024 |
United Kingdom: W100 Surbiton - Singles - Main |
| 1/16-finals | Tan H. | Day K. | 2:1 (4:6, 6:3, 6:4) | details | 05.06.2024 |
France: French Open - Singles - Main |
| 1/64-finals | Baptiste H. | Day K. | 2:1 (4:6, 6:2, 6:2) | details | 27.05.2024 |
| 1/64-finals | Dodin O. | Day K. | CAN. | details | 27.05.2024 |
Morocco: Rabat - Singles - Main |
| 1/16-finals | Day K. | Bai Z. | 0:2 (3:6, 64:7) | details | 20.05.2024 |
USA: W75 Zephyrhills, FL - Singles - Main |
| Semi-finals | Day K. | Jovic I. | 0:2 (2:6, 3:6) | details | 11.05.2024 |
| Quarter-finals | Day K. | Bouchard E. | 1:1 RET. (64:7, 7:5, 0:0) | details | 10.05.2024 |
| 1/8-finals | Day K. | Rinaldo Persson K. | 2:0 (6:1, 7:64) | details | 09.05.2024 |
| 1/16-finals | Day K. | Anderson R. | 2:0 (6:4, 6:4) | details | 09.05.2024 |
USA: W100 Bonita Springs, FL - Singles - Main |
| 1/16-finals | Day K. | Jovic I. | 0:2 (2:6, 4:6) | details | 01.05.2024 |
USA: W75 Charlottesville, VA - Singles - Main |
| Final | Day K. | Chirico L. | 0:2 (1:6, 5:7) | details | 28.04.2024 |
| Semi-finals | Day K. | Sun L. | 2:0 (7:5, 6:2) | details | 27.04.2024 |
| Quarter-finals | Day K. | Lepchenko V. | 2:0 (7:66, 7:5) | details | 26.04.2024 |
| 1/8-finals | Day K. | Chang S. | 2:0 (7:5, 6:4) | details | 25.04.2024 |
| 1/16-finals | Day K. | Yamalapalli S. | 2:0 (6:2, 6:0) | details | 24.04.2024 |
Switzerland: W75 Chiasso - Singles - Main |
| Quarter-finals | Day K. | Cengiz B. | 1:2 (6:2, 4:6, 3:6) | details | 19.04.2024 |
| 1/8-finals | Day K. | Bandecchi S. | 2:1 (7:65, 5:7, 7:5) | details | 18.04.2024 |
| 1/16-finals | Day K. | Gabric A. | 2:1 (6:4, 1:6, 6:1) | details | 17.04.2024 |
Switzerland: W75 Bellinzona - Singles - Main |
| Semi-finals | Day K. | Bondar A. | 0:2 (2:6, 5:7) | details | 13.04.2024 |
| Quarter-finals | Day K. | Pattinama Kerkhove L. | 2:1 (6:0, 63:7, 6:3) | details | 12.04.2024 |
| 1/8-finals | Day K. | Duerst J. | 2:1 (1:6, 7:5, 6:3) | details | 11.04.2024 |
| 1/16-finals | Day K. | Tsygourova K. | 2:0 (6:2, 6:2) | details | 10.04.2024 |
USA: Charleston - Singles - Main |
| 1/32-finals | Dolehide C. | Day K. | 2:1 (6:3, 0:6, 6:4) | details | 02.04.2024 |
USA: Miami - Singles - Qualification |
| Semi-finals | Day K. | Arango E. | 1:2 (5:7, 7:5, 4:6) | details | 17.03.2024 |
USA: Charleston - Singles - Main |
| 1/16-finals | Day K. | Sasnovich A. | 1:2 (7:5, 5:7, 4:6) | details | 11.03.2024 |
USA: Indian Wells - Singles - Main |
| 1/32-finals | Day K. | Podoroska N. | 0:2 (63:7, 4:6) | details | 09.03.2024 |
USA: Indian Wells - Singles - Qualification |
| Final | Day K. | Andreeva E. | 1:2 (1:6, 6:3, 3:6) | details | 06.03.2024 |
| Semi-finals | Day K. | Parks A. | 2:0 (6:1, 6:4) | details | 04.03.2024 |
USA: San Diego - Singles - Qualification |
| Final | Day K. | Li A. | 0:2 (3:6, 0:6) | details | 25.02.2024 |
| Semi-finals | Day K. | Sieg M. | 2:0 (6:3, 6:3) | details | 24.02.2024 |
India: Mumbai - Singles - Main |
| 1/16-finals | Day K. | Yamalapalli S. | 1:2 (4:6, 6:1, 4:6) | details | 05.02.2024 |
Australia: Australian Open - Singles - Main |
| 1/64-finals | Day K. | Tomova V. | 0:2 (4:6, 2:6) | details | 15.01.2024 |
Australia: Hobart - Singles - Qualification |
| Semi-finals | Day K. | Tomova V. | 1:2 (6:3, 0:6, 3:6) | details | 06.01.2024 |
New Zealand: Auckland - Singles - Main |
| 1/16-finals | Yuan Y. | Day K. | 2:1 (7:61, 65:7, 6:1) | details | 02.01.2024 |
USA: Midland - Singles - Main |
| 1/16-finals | Marino R. | Day K. | CAN. | details | 01.11.2023 |
USA: W80 Tyler, TX - Singles - Main |
| Final | Navarro E. | Day K. | 2:0 (6:3, 6:4) | details | 29.10.2023 |
| Semi-finals | Akli A. | Day K. | 0:2 (2:6, 5:7) | details | 28.10.2023 |
| Quarter-finals | Kozyreva M. | Day K. | 0:2 (4:6, 4:6) | details | 27.10.2023 |
| 1/8-finals | Rajecki A. | Day K. | 0:2 (1:6, 4:6) | details | 27.10.2023 |
| 1/16-finals | Vecic A. | Day K. | 1:2 (7:65, 2:6, 2:6) | details | 25.10.2023 |