Estádio: Court 3 Round: 62 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/08/08 07:30 | Mwendwa Mbithi v Takuya Kumasaka | 6-2,6-7,2-10 |
| ITF - M25 Weston | 2021/06/29 21:00 | Mwendwa Mbithi v Ben Shelton | 4-6,6-7 |
| ITF - M25 Pensacola | 2021/05/19 14:30 | Mwendwa Mbithi v Oliver Crawford | 5-7,4-6 |
| ITF - M25 Naples | 2021/02/16 16:00 | Mwendwa Mbithi v Kiranpal Pannu | 4-6,3-6 |
| ITF - M25 Naples | 2021/02/15 16:00 | Wilson Leite v Mwendwa Mbithi | 6-2,3-6,3-10 |
| ITF - M15 Cancún | 2020/03/12 14:00 | Mwendwa Mbithi v Mauricio Echazu | 6-4,5-7,7-5 |
| ITF - M15 Cancún | 2020/03/10 16:55 | Mwendwa Mbithi v Michael A Beltran Rubio | 6-0,6-0 |
| ITF - M25 Naples | 2020/02/10 15:30 | Alexander Bernard v Mwendwa Mbithi | 3-6,6-3,10-5 |
| ITF - M15 Monastir | 2021/08/08 07:30 | Mateo Nicolas Martinez v Matas Vasiliauskas | 6-4,6-3 |
| ITF - M15 Monastir | 2021/08/02 07:30 | Joshua Paris v Matas Vasiliauskas | 6-3,6-4 |
| ITF - M15 Monastir | 2021/08/01 09:00 | Masood Eisa-Beygi v Matas Vasiliauskas | 0-6,0-6 |
| ITF - M15 Monastir | 2021/07/25 08:00 | Egor Novikov v Matas Vasiliauskas | 6-4,6-3 |
| ITF - M15 Monastir | 2021/07/18 13:00 | Wissam Abderrahman v Matas Vasiliauskas | 6-3,6-4 |
| ITF - M15 Monastir | 2021/07/11 10:00 | Nicolas Hollender v Matas Vasiliauskas | 6-2,6-7,11-9 |
| ITF - M15 Heraklion | 2021/06/10 09:15 | Matas Vasiliauskas v Billy Harris | 3-6,6-3,1-6 |
| ITF - M15 Heraklion | 2021/06/09 14:00 | Matas Vasiliauskas v Runhao Hua | 6-4,7-6 |