USA: Charlottesville - Singles - Qualification |
| Semi-finals | Zahraj P. | Kumar O. | 2:1 (67:7, 7:64, 7:63) | details | 27.10.2024 |
USA: Sioux Falls - Singles - Main |
| 1/16-finals | Kumar O. | Lajal M. | 0:2 (2:6, 0:6) | details | 22.10.2024 |
USA: Sioux Falls - Singles - Qualification |
| Final | Kumar O. | Woestendick C. | 0:2 (4:6, 65:7) | details | 21.10.2024 |
| Semi-finals | Kumar O. | Brumm J. | 2:0 (7:5, 7:5) | details | 20.10.2024 |
Tunisia: M15 Monastir 41 - Singles - Main |
| Final | Coppejans K. | Kumar O. | 2:0 (6:3, 6:2) | details | 13.10.2024 |
| Semi-finals | Rodesch C. | Kumar O. | 0:0 RET. (2:4) | details | 12.10.2024 |
| Quarter-finals | Jadoun N. | Kumar O. | 0:2 (1:6, 3:6) | details | 11.10.2024 |
| 1/8-finals | Tabacco F. | Kumar O. | 0:2 (2:6, 5:7) | details | 10.10.2024 |
| 1/16-finals | Prechtel S. | Kumar O. | 0:2 (3:6, 4:6) | details | 08.10.2024 |
Tunisia: M15 Monastir 40 - Singles - Main |
| Semi-finals | Demanet E. | Kumar O. | 1:1 RET. (3:6, 7:65, 5:4) | details | 05.10.2024 |
| Quarter-finals | Rivet M. | Kumar O. | 0:2 (0:6, 3:6) | details | 04.10.2024 |
| 1/8-finals | Aksu C. | Kumar O. | 1:2 (6:4, 1:6, 2:6) | details | 03.10.2024 |
| 1/16-finals | Schoenhaus M. | Kumar O. | 0:2 (5:7, 2:6) | details | 01.10.2024 |
Tunisia: M15 Monastir 39 - Singles - Main |
| Semi-finals | Hernandez C. | Kumar O. | 2:1 (6:3, 3:6, 6:1) | details | 28.09.2024 |
| Quarter-finals | Tammaro M. | Kumar O. | 0:2 (2:6, 1:6) | details | 27.09.2024 |
| 1/8-finals | Vincent A. | Kumar O. | 0:2 (4:6, 2:6) | details | 26.09.2024 |
| 1/16-finals | Aksu C. | Kumar O. | 0:2 (4:6, 4:6) | details | 25.09.2024 |
Tunisia: M15 Monastir 38 - Singles - Main |
| Final | Dussin L. | Kumar O. | 1:2 (3:6, 7:64, 1:6) | details | 22.09.2024 |
| Semi-finals | Singh K. | Kumar O. | 0:2 (4:6, 4:6) | details | 21.09.2024 |
| Quarter-finals | Demanet E. | Kumar O. | 0:2 (3:6, 4:6) | details | 20.09.2024 |
| 1/8-finals | Vincent A. | Kumar O. | 1:2 (3:6, 6:2, 4:6) | details | 19.09.2024 |
| 1/16-finals | Alkotop M. | Kumar O. | 0:2 (5:7, 3:6) | details | 17.09.2024 |
USA: Las Vegas - Singles - Main |
| 1/16-finals | Kumar O. | Boyer T. | 1:2 (6:4, 2:6, 3:6) | details | 11.09.2024 |
USA: Las Vegas - Singles - Qualification |
| Final | Kumar O. | Cassone M. | 1:0 RET. (7:65, 3:1) | details | 09.09.2024 |
| Semi-finals | Kumar O. | Godsick N. | 2:0 (6:3, 6:4) | details | 09.09.2024 |
China: Shanghai - Singles - Qualification |
| Final | Kumar O. | Rai A. | 1:2 (6:1, 2:6, 3:6) | details | 02.09.2024 |
| Semi-finals | Ursu V. | Kumar O. | 1:2 (1:6, 6:2, 4:6) | details | 01.09.2024 |
China: Zhangjiagang - Singles - Qualification |
| Semi-finals | Kumar O. | Smith K. | 0:2 (3:6, 5:7) | details | 25.08.2024 |
USA: Winston-Salem - Singles - Main |
| 1/32-finals | Kumar O. | Carreno-Busta P. | 0:2 (2:6, 0:6) | details | 19.08.2024 |
USA: Winston-Salem - Singles - Qualification |
| Final | Svajda Z. | Kumar O. | 0:2 (2:6, 4:6) | details | 18.08.2024 |
| Semi-finals | Kumar O. | Seggerman R. | 2:0 (6:1, 6:4) | details | 17.08.2024 |
USA: Lincoln - Singles - Qualification |
| Semi-finals | Kumar O. | Poling K. | 0:2 (613:7, 1:6) | details | 04.08.2024 |
USA: Lexington - Singles - Main |
| 1/8-finals | Kumar O. | Nava E. | 0:2 (4:6, 2:6) | details | 01.08.2024 |
| 1/16-finals | Kumar O. | Broom C. | 2:0 (7:5, 6:3) | details | 30.07.2024 |
USA: Chicago - Singles - Qualification |
| Semi-finals | Kumar O. | Bellier A. | 1:2 (4:6, 7:612, 4:6) | details | 21.07.2024 |
Canada: Granby - Singles - Qualification |
| Semi-finals | Kumar O. | Arseneault N. | 1:2 (7:64, 5:7, 5:7) | details | 14.07.2024 |
Italy: Francavilla - Singles - Qualification |
| Semi-finals | Dhamne M. | Kumar O. | CAN. | details | 05.05.2024 |
Italy: M25 Santa Margherita di Pula 6 - Singles - Main |
| Quarter-finals | Clarke J. | Kumar O. | 1:0 RET. (6:1, 3:0) | details | 04.05.2024 |
| 1/8-finals | Wehnelt K. | Kumar O. | 1:2 (4:6, 6:4, 4:6) | details | 03.05.2024 |
| 1/16-finals | Zahraj P. | Kumar O. | 0:2 (4:6, 3:6) | details | 30.04.2024 |
Italy: M25 Santa Margherita di Pula 5 - Singles - Main |
| Quarter-finals | Lopez Montagud C. | Kumar O. | 2:0 (6:3, 7:5) | details | 25.04.2024 |
| 1/8-finals | Sorrentino L. | Kumar O. | 0:2 (4:6, 2:6) | details | 24.04.2024 |
| 1/16-finals | Carboni L. | Kumar O. | 0:2 (3:6, 4:6) | details | 22.04.2024 |
Italy: M25 Santa Margherita di Pula 4 - Singles - Main |
| Semi-finals | Kivattsev K. | Kumar O. | 2:0 (6:2, 6:3) | details | 19.04.2024 |
| Quarter-finals | Ribecai M. | Kumar O. | 0:2 (61:7, 0:6) | details | 18.04.2024 |
| 1/8-finals | Beaupain S. | Kumar O. | 0:2 (0:6, 3:6) | details | 17.04.2024 |
| 1/16-finals | Kasemi K. S. | Kumar O. | 0:2 (2:6, 1:6) | details | 15.04.2024 |
Italy: M25 Santa Margherita di Pula 3 - Singles - Main |
| 1/16-finals | Kumar O. | Reitano S. | 1:2 (2:6, 6:1, 66:7) | details | 08.04.2024 |
USA: M25 Calabasas, CA - Singles - Main |
| 1/8-finals | Svajda T. | Kumar O. | 2:0 (6:3, 6:3) | details | 21.03.2024 |
| 1/16-finals | Strode E. | Kumar O. | 1:2 (6:3, 1:6, 5:7) | details | 20.03.2024 |