Stadium: Court 5 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Sharm El Sheikh | 2021/03/30 08:40 | Mattia Bellucci v Karlo Cubelic | 6-2,6-2 |
| ITF M15 Sharm El Sheikh | 2021/03/29 13:00 | Jack Gibbens v Karlo Cubelic | 3-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/03/28 16:00 | Inaki Cabrera Bello v Karlo Cubelic | 1-6,5-7 |
| ITF M15 Sharm El Sheikh | 2021/03/24 11:55 | Oscar Jose Gutierrez v Karlo Cubelic | 4-6,6-3,7-6 |
| ITF M15 Sharm El Sheikh | 2021/03/23 11:35 | Petr Hajek v Karlo Cubelic | 7-6,6-2 |
| ITF M15 Sharm El Sheikh | 2021/03/22 13:00 | Toby D. Boyer v Karlo Cubelic | 1-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/02/17 07:30 | Karlo Cubelic v Martins Podzus | 6-4,1-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/02/16 10:55 | Luca Potenza v Karlo Cubelic | 6-7,3-6 |
| UTR Pro Tennis Series Cancun | 2021/03/29 20:00 | Jose Antonio Rodriguez Rodriguez v Felix Corwin | 2-6,3-6 |
| Challenger Cleveland | 2021/03/16 23:40 | Felix Corwin v Brayden Schnur | 6-7,6-7 |
| Challenger Cleveland | 2021/03/15 15:45 | Felix Corwin v Martin Redlicki | 6-7,6-1,6-4 |
| Challenger Cleveland | 2021/03/14 20:30 | Felix Corwin v Ricardo Rodriguez-Pace | 6-4,6-4 |
| ITF M15 Sharm El Sheikh | 2021/02/24 15:40 | Lorenzo Claverie v Felix Corwin | 6-3,6-3 |
| ITF M15 Sharm El Sheikh | 2021/02/18 07:30 | Felix Corwin v David Poljak | 1-6,6-7 |
| ITF M15 Sharm El Sheikh | 2021/02/17 10:25 | Mohab Hamed v Felix Corwin | 3-6,1-6 |
| ITF M15 Sharm El Sheikh | 2021/02/07 14:30 | Felix Corwin v Francesco Passaro | 1-6,2-6 |