Stadium: Court 1 Round: 25 Ground: Hardcourt indoor
| Challenger - Knoxville | 2021/11/07 20:00 | Alexander Brown v Donald Young | 3-6,6-3,3-6 |
| ITF - M15 Fayetteville | 2021/09/21 17:00 | Alexander Brown v Liam Draxl | 3-6,3-6 |
| ITF - M15 Champaign | 2021/09/15 17:05 | Alexander Brown v A.J Catanzariti | 1-6,2-6 |
| ITF - M25 Decatur | 2021/08/02 15:00 | Nicholas Bybel v Alexander Brown | 6-4,6-1 |
| ITF - M25 Champaign | 2021/07/26 15:00 | Alexander Brown v Bruno Kuzuhara | 4-6,6-2,6-10 |
| ITF - M15 Edwardsville | 2021/07/21 17:20 | Alexander Brown v Kento Takeuchi | 6-1,2-6,2-6 |
| ITF - M15 Champaign | 2021/06/23 22:30 | Michail Pervolarakis v Alexander Brown | 6-3,6-0 |
| ITF - M25 Tulsa | 2021/06/14 18:00 | Alexander Brown v Trent Bryde | 3-6,0-6 |
| ITF - M15 East Lansing | 2021/11/16 15:00 | Osgar O'Hoisin v Niroop Vallabhaneni | 6-1,1-6,5-10 |
| ITF - M15 East Lansing | 2021/11/15 18:00 | Niroop Vallabhaneni v Peter Kuszynski | 4-6,6-2,10-6 |