Stadium: Court 3 Round: 27 Ground: Hardcourt indoor
| ITF M15 East Lansing | 2021/11/18 21:50 | Gabriel Diallo v Andres Andrade | 7-6,7-5 |
| ITF M15 East Lansing | 2021/11/16 18:00 | Jeffrey Von Der Schulenburg v Gabriel Diallo | 1-6,2-6 |
| Challenger Lexington | 2021/07/25 15:00 | Darian King v Gabriel Diallo | 6-2,3-6,6-3 |
| ITF M15 Champaign | 2021/06/27 15:00 | Jason Kubler v Gabriel Diallo | 6-2,6-1 |
| ITF M15 Champaign | 2021/06/26 15:00 | Gabriel Diallo v Kyle Seelig | 6-4,6-3 |
| ITF M15 Champaign | 2021/06/25 17:00 | Gabriel Diallo v Khololwam Montsi | 7-5,6-3 |
| ITF M15 Champaign | 2021/06/24 15:00 | Genaro Alberto Olivieri v Gabriel Diallo | 3-6,6-7 |
| ITF M15 Champaign | 2021/06/23 19:05 | Benjamin Sigouin v Gabriel Diallo | 3-6,2-6 |
| ITF M15 East Lansing | 2021/11/18 20:20 | Andrew Fenty v Matt Kuhar | 3-6,3-6 |
| ITF M15 East Lansing | 2021/11/17 19:30 | Matt Kuhar v Jean Thirouin | 6-4,4-6,6-1 |
| ITF M15 East Lansing | 2021/11/16 16:00 | Johannes Ingildsen v Matt Kuhar | 2-6,6-4,11-13 |
| ITF M15 Tallahassee | 2021/10/27 20:30 | Matt Kuhar v Henry Patten | 4-6,3-6 |
| ITF M15 Tallahassee | 2021/10/26 13:00 | Michael Zheng v Matt Kuhar | 2-6,7-6,3-10 |
| ITF M15 Cancun | 2021/10/07 20:05 | Matt Kuhar v Christian Langmo | 5-7,0-6 |
| ITF M15 Cancun | 2021/10/06 22:10 | Matt Kuhar v Julian Messina | 6-0,6-0 |
| ITF M15 Cancun | 2021/10/05 14:00 | Matt Kuhar v Nikolas Moceanu | 6-4,6-4 |