Stadium: Court 8 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Santo Domingo | 2021/12/08 13:30 | Johannes Ingildsen v Colin Markes | 7-6,6-7,6-7 |
| ITF M15 Santo Domingo | 2021/12/02 16:15 | Peter Bertran v Colin Markes | 6-3,6-7,6-4 |
| ITF M15 Santo Domingo | 2021/12/01 16:50 | Yasha Zemel v Colin Markes | 3-6,4-6 |
| ITF M25 Santo Domingo | 2021/11/30 13:00 | Colin Markes v Jesus M Rosario | 6-1,6-2 |
| ITF M25 Santo Domingo | 2021/11/29 15:00 | Colin Markes v Rafael Abdul Salam | 6-2,6-4 |
| ITF M25 Austin | 2021/11/20 18:45 | Eduardo Nava v Colin Markes | 7-6,6-1 |
| ITF M25 Austin | 2021/11/19 16:55 | Colin Markes v Kareem Allaf | 6-2,4-6,7-6 |
| ITF M25 Austin | 2021/11/18 17:00 | Christian Langmo v Colin Markes | 3-6,6-3,6-7 |
| ITF M15 Santo Domingo | 2021/12/08 16:10 | Daniel Baquero v Alexis Musialek | 2-6,2-6 |
| ITF M15 Santo Domingo | 2021/12/03 13:30 | Jorge Panta v Alexis Musialek | 6-4,7-5 |
| ITF M15 Santo Domingo | 2021/12/02 13:30 | Fabian Hansch Mauritzson v Alexis Musialek | 2-6,2-6 |
| ITF M15 Santo Domingo | 2021/12/01 18:05 | Matthew Foster-Estwick v Alexis Musialek | 0-6,2-6 |
| ITF M15 Heraklion | 2021/11/18 08:55 | Ryan James Storrie v Alexis Musialek | 6-3,5-7,6-4 |
| ITF M15 Heraklion | 2021/11/12 08:00 | Francesco Maestrelli v Alexis Musialek | 7-6,6-2 |
| ITF M15 Girona | 2021/10/19 09:00 | Diego A B Sanchez v Alexis Musialek | 6-1,6-3 |
| ITF M15 Platja D'Aro | 2021/10/15 12:10 | Alexis Musialek v Carlos Sanchez Jover | 3-6,1-6 |