| UTR Pro Tennis Series New York | 2022/01/01 21:44 | Mac Kiger v Udayan Bhakar | 7-6,6-2 |
| UTR Pro Tennis Series New York | 2021/12/31 17:00 | Mac Kiger v Brian Shi | 2-6,7-5,3-6 |
| UTR Pro Tennis Series New York | 2021/12/30 17:30 | Mac Kiger v Liam Krall | 1-6,6-2,4-6 |
| UTR Pro Tennis Series New York | 2021/12/29 20:30 | Roy Smith v Mac Kiger | 6-4,6-3 |
| UTR Pro Tennis Series New York | 2021/12/28 19:00 | Nicholas Steiglehner v Mac Kiger | 6-4,1-6,5-3 |
| UTR Pro Tennis Series Dallas | 2021/08/08 13:00 | William Grant v Mac Kiger | 6-4,6-5 |
| UTR Pro Tennis Series Dallas | 2021/08/07 17:30 | Mac Kiger v A.J Catanzariti | 7-5,1-6,5-3 |
| UTR Pro Tennis Series Dallas | 2021/08/06 14:30 | Elijah Poritzky v Mac Kiger | 3-6,5-7 |
| UTR Pro Tennis Series New York | 2021/12/31 14:00 | Jordan Chrysostom v Diogo Marques | 6-4,5-2 |
| UTR Pro Tennis Series New York | 2021/12/30 16:00 | Michael Sun v Diogo Marques | 6-1,7-5 |
| UTR Pro Tennis Series New York | 2021/12/28 16:00 | Luc Fomba v Diogo Marques | 6-2,6-1 |
| UTR Pro Tennis Series New York | 2021/12/27 20:23 | Diogo Marques v A.trice Pickens | 4-6,6-7 |
| ITF M15 Vero Beach | 2021/10/21 17:00 | Duarte Vale v Diogo Marques | 6-3,6-3 |
| ITF M15 Vero Beach | 2021/10/20 16:00 | Diogo Marques v A.J Catanzariti | 2-6,6-3,6-3 |
| ITF M25 Vero Beach | 2021/10/19 16:00 | Diogo Marques v Nikolay Sysoev | 6-2,6-4 |
| ITF M25 Vero Beach | 2021/10/18 16:00 | Adam Jones v Diogo Marques | 6-3,3-6,1-10 |