Stadium: Court 1 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/05/19 10:15 | Brandon Holt v Savva Polukhin | 6-1,1-6,4-6 |
| ITF M15 Monastir | 2021/05/13 11:35 | Santiago Rodriguez Taverna v Brandon Holt | 6-4,6-7,6-3 |
| ITF M15 Monastir | 2021/05/12 10:00 | Luca Potenza v Brandon Holt | 1-6,6-3,2-6 |
| ITF M15 Monastir | 2021/05/06 11:15 | Brandon Holt v Luca Potenza | 6-4,4-6,0-6 |
| ITF M15 Monastir | 2021/05/04 10:30 | Yunseong Chung v Brandon Holt | 3-6,3-6 |
| ITF M15 Monastir | 2021/04/28 10:10 | Zachary Svajda v Brandon Holt | 6-3,2-6,6-4 |
| ITF M25 Naples | 2021/02/18 15:00 | Christian Harrison v Brandon Holt | 6-2,6-3 |
| ITF M25 Naples | 2021/02/17 15:00 | Jordi Arconada v Brandon Holt | 4-6,4-6 |
| ITF M15 Cancun | 2021/09/29 17:35 | Alfredo Perez v Colin Markes | 6-2,7-5 |
| ITF M15 Cancun | 2021/09/28 14:00 | Gabriel Roveri Sidney v Colin Markes | 1-6,4-6 |
| ITF M15 Cancun | 2021/09/27 14:30 | Colin Markes v Austin Ansari | 4-6,4-6 |
| ITF M15 Cancun | 2021/09/26 17:00 | Diego Bustamante v Colin Markes | 1-6,0-6 |
| ITF M15 Cancun | 2021/09/22 15:55 | Colin Markes v Christian Langmo | 6-7,6-4,2-6 |
| ITF M15 Cancun | 2021/09/21 14:00 | Colin Markes v Nikolas Moceanu | 6-3,6-2 |
| ITF M15 Cancun | 2021/09/20 14:00 | Colin Markes v Lance A L Castelan | 6-2,6-1 |
| ITF M15 Cancun | 2021/09/19 14:00 | Colin Markes v Enzo Frances Tessari | 6-1,6-3 |