Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| ITF M15 - Champaign | 2021/06/22 15:00 | Victor Lilov v Preston Brown | 7-5,6-0 |
| ITF M15 - Champaign | 2021/06/21 15:00 | Preston Brown v Chad Kissell | 6-4,6-4 |
| ITF M25 - Wichita | 2021/06/09 21:00 | Preston Brown v Genaro Alberto Olivieri | 3-6,1-6 |
| ITF M25 - Wichita | 2021/06/08 17:40 | Murphy Cassone v Preston Brown | 6-3,6-7,6-10 |
| ITF M25 - Wichita | 2021/06/07 15:00 | Yi Jui Lo v Preston Brown | 2-6,0-6 |
| ITF M15 - New Delhi | 2021/03/31 07:50 | Manish Sureshkumar v Preston Brown | 6-3,6-3 |
| ITF M15 - New Delhi | 2021/03/30 05:45 | Suraj R Prabodh v Preston Brown | 7-5,6-4 |
| ITF M15 - New Delhi | 2021/03/28 05:00 | Jagmeet Singh v Preston Brown | 3-6,7-6,8-10 |
| ITF M15 - Champaign | 2021/06/21 15:00 | Gabriel Diallo v Nicaise Muamba | 7-5,6-3 |
| ITF M25 - Tulsa | 2021/06/15 16:30 | Trent Bryde v Nicaise Muamba | 6-1,6-4 |
| ITF M25 - Tulsa | 2021/06/14 18:00 | Nicaise Muamba v Garrett Johns | 6-4,6-4 |
| ITF M25 - Fayetteville | 2020/11/03 16:00 | Matias Soto v Nicaise Muamba | 6-3,6-3 |
| ITF M25 - Fayetteville | 2020/11/02 16:00 | Austin Ansari v Nicaise Muamba | 3-6,2-6 |
| ITF M25 - Malibu | 2019/11/04 18:00 | Enrique L Rico v Nicaise Muamba | 6-1,6-2 |
| ITF M25 - Naples | 2019/10/29 14:00 | Eero Vasa v Nicaise Muamba | 6-1,6-2 |
| ITF M25 - Naples | 2019/10/28 21:00 | Mehdi Laalej v Nicaise Muamba | 6-7,2-6 |