Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Sharm El Sheikh | 2021/11/17 11:15 | Sebastian Prechtel v Karlo Cubelic | 6-4,6-4 |
| ITF M15 Sharm El Sheikh | 2021/11/16 08:00 | Karlo Cubelic v Bang Shuo Yin | 6-4,6-7,11-9 |
| ITF M15 Sharm El Sheikh | 2021/11/09 08:00 | Daniel Little v Karlo Cubelic | 6-2,6-1 |
| ITF M15 Sharm El Sheikh | 2021/11/08 08:00 | Ainius Sabaliauskas v Karlo Cubelic | 5-7,2-6 |
| ITF M25 Sarreguemines | 2021/10/26 08:00 | Karlo Cubelic v Gauthier Onclin | 7-5,4-6,3-6 |
| ITF M25 Sarreguemines | 2021/10/25 09:30 | Karlo Cubelic v Jordan Betesh | 7-5,6-3 |
| ITF M25 Sarreguemines | 2021/10/24 09:25 | Karlo Cubelic v Alen Moritz Hodzic | 6-3,6-3 |
| ITF M15 Doha | 2021/10/20 17:15 | Tao Mu v Karlo Cubelic | 4-6,6-1,6-4 |
| ITF M15 Monastir | 2021/12/27 09:00 | Matas Vasiliauskas v Pablo Carretero | 3-6,2-6 |
| ITF M15 Monastir | 2021/12/23 12:00 | Matas Vasiliauskas v Renta Tokuda | 1-6,1-6 |
| ITF M15 Monastir | 2021/12/22 12:30 | Nicolas Rafael Goldberg Alviani v Matas Vasiliauskas | 3-6,2-6 |
| ITF M15 Monastir | 2021/12/15 09:30 | Matas Vasiliauskas v Martin Breysach | 4-6,4-6 |
| ITF M15 Monastir | 2021/12/13 12:30 | Matas Vasiliauskas v Mathieu Scaglia | 4-6,6-3,9-11 |
| ITF M15 Monastir | 2021/12/13 08:00 | Matas Vasiliauskas v Preston Connor | 6-1,6-0 |
| ITF M15 Monastir | 2021/12/12 08:00 | Matas Vasiliauskas v Rhys Searant | 6-1,6-7,11-9 |
| ITF M15 Monastir | 2021/12/08 10:05 | Omni Kumar v Matas Vasiliauskas | 7-6,6-0 |