Stadium: Court 5 N Round: 28 Ground: Hardcourt outdoor
| ITF - Champaign M15 | 2021/06/25 17:00 | Gabriel Diallo v Khololwam Montsi | 7-5,6-3 |
| ITF - Champaign M15 | 2021/06/24 15:00 | Genaro Alberto Olivieri v Gabriel Diallo | 3-6,6-7 |
| ITF - Champaign M15 | 2021/06/23 19:05 | Benjamin Sigouin v Gabriel Diallo | 3-6,2-6 |
| ITF - Champaign M15 | 2021/06/22 15:00 | Peter Bertran v Gabriel Diallo | 1-6,0-6 |
| ITF - Champaign M15 | 2021/06/21 15:00 | Gabriel Diallo v Nicaise Muamba | 7-5,6-3 |
| ITF - Wichita M25 | 2021/06/09 19:20 | Patrick Kypson v Gabriel Diallo | 6-4,6-4 |
| ITF - Wichita M25 | 2021/06/08 16:45 | Mark Mandlik v Gabriel Diallo | 2-6,7-6,9-11 |
| ITF - Wichita M25 | 2021/06/07 15:00 | Gabriel Diallo v Eric Hadigian | 6-2,7-6 |
| ITF - Champaign M15 | 2021/06/25 16:55 | Michail Pervolarakis v Kyle Seelig | 4-6,1-6 |
| ITF - Champaign M15 | 2021/06/24 14:55 | Kyle Seelig v Thomaz Bellucci | 2-6,6-2,6-4 |
| ITF - Champaign M15 | 2021/06/23 19:10 | Vasil Kirkov v Kyle Seelig | 6-4,3-6,6-7 |
| ITF - Champaign M15 | 2021/06/22 15:00 | Kyle Seelig v Jose Pereira | 7-6,7-6 |
| ITF - Champaign M15 | 2021/06/21 15:00 | Kyle Seelig v Cleeve Harper | 6-2,6-1 |
| ITF - Santo Domingo M25 | 2021/06/09 14:55 | Kyle Seelig v Conner Huertas Del Pino | 6-3,2-6,2-6 |
| ITF - Santo Domingo M25 | 2021/06/08 14:20 | Kyle Seelig v Sebastian Eguez | 6-3,6-2 |
| ITF - Santo Domingo M25 | 2021/06/06 13:00 | Kyle Seelig v Aydan Gomez Osorio | 6-0,6-0 |