Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF M15 - Edwardsville | 2021/07/20 15:30 | Kyle Seelig v Ethan Quinn | 6-4,6-3 |
| ITF M15 - Edwardsville | 2021/07/19 16:30 | Kyle Seelig v Parth Aggarwal | 7-5,6-2 |
| ITF M15 - Weston | 2021/07/01 21:10 | Kyle Seelig v Gonzalo Villanueva | 6-3,6-7,6-7 |
| ITF M15 - Weston | 2021/07/01 15:25 | Kyle Seelig v Gonzalo Villanueva | 6-3,6-7,6-7 |
| ITF M25 - Weston | 2021/06/29 23:30 | Kyle Seelig v Jack Anthrop | 6-2,4-6,10-3 |
| ITF M25 - Weston | 2021/06/29 21:00 | Kyle Seelig v Evan Bynoe | 6-4,7-6 |
| ITF - M15 Champaign | 2021/06/26 15:00 | Gabriel Diallo v Kyle Seelig | 6-4,6-3 |
| ITF - M15 Champaign | 2021/06/25 16:55 | Michail Pervolarakis v Kyle Seelig | 4-6,1-6 |
| ITF M15 - Weston | 2021/07/03 17:15 | Stefan Kozlov v Christian Langmo | 6-2,7-5 |
| ITF M15 - Weston | 2021/07/02 20:50 | Christian Langmo v Roberto Quiroz | 6-3,3-6,12-10 |
| ITF M15 - Weston | 2021/07/01 13:00 | Benjamin Sigouin v Christian Langmo | 6-4,3-6,0-6 |
| ITF - M15 Champaign | 2021/06/25 18:50 | Jason Kubler v Christian Langmo | 6-4,6-1 |
| ITF - M15 Champaign | 2021/06/24 22:40 | Connor Farren v Christian Langmo | 4-6,4-6 |
| ITF - M15 Champaign | 2021/06/23 15:00 | Christian Langmo v Rio Noguchi | 7-6,6-4 |
| ITF - M25 Santo Domingo | 2021/06/09 13:00 | Christian Langmo v Luis Patino | 3-6,7-6,2-6 |
| ITF - M25 Santo Domingo | 2021/06/04 18:50 | Christian Langmo v Nick Hardt | 6-7,4-6 |