Stadium: Court 7 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/09/08 08:00 | Skander Mansouri v Mwendwa Mbithi | 6-4,7-5 |
| ITF M15 Monastir | 2021/09/01 09:30 | Skander Mansouri v Mwendwa Mbithi | 6-2,2-6,7-6 |
| ITF M15 Monastir | 2021/08/25 07:30 | Luciano Darderi v Mwendwa Mbithi | 6-4,6-1 |
| ITF M15 Monastir | 2021/08/17 07:30 | Mwendwa Mbithi v Gabriele Bosio | 2-6,5-7 |
| ITF M15 Monastir | 2021/08/16 07:30 | Mwendwa Mbithi v Alan F R Fierros | 6-7,6-4,10-6 |
| ITF M15 Monastir | 2021/08/15 08:30 | Mwendwa Mbithi v Matas Vasiliauskas | 7-5,6-3 |
| 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 M15 Cancun | 2021/09/24 15:00 | Federico Agustin Gomez v Juan A H Serrano | 3-6,6-4,7-6 |
| ITF M15 Cancun | 2021/09/23 14:00 | Jesse Flores v Juan A H Serrano | 4-6,4-6 |
| ITF M15 Cancun | 2021/09/22 20:45 | Joshua Sheehy v Juan A H Serrano | 3-6,2-6 |
| ITF M25 Medellin | 2021/09/17 15:00 | Pedro Sakamoto v Juan A H Serrano | 6-3,6-2 |
| ITF M25 Medellin | 2021/09/16 15:00 | Pedro Boscardin Dias v Juan A H Serrano | 3-6,4-6 |
| ITF M25 Medellin | 2021/09/14 16:00 | Enrique Pena v Juan A H Serrano | 2-6,2-6 |
| ITF M15 Ibague | 2021/09/11 15:00 | Juan A H Serrano v Alejandro Gomez | 1-6,4-6 |
| ITF M15 Ibague | 2021/09/10 17:00 | Juan A H Serrano v Gerardo L Villasenor | 7-6,6-4 |