Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF M15 East Lansing | 2019/11/20 17:45 | Strong Kirchheimer v Keenan Mayo | 6-3,6-3 |
| ITF M15 Fayetteville | 2021/11/03 16:30 | Strong Kirchheimer v Nicolas Rousset | 5-7,4-6 |
| ITF M25 Calabasas | 2021/10/27 18:55 | Austin Ansari v Strong Kirchheimer | 6-1,4-6,6-3 |
| ITF - M15 Cancún | 2021/10/13 21:30 | Federico Agustin Gomez v Strong Kirchheimer | 4-6,6-3,2-6 |
| ITF - M15 Cancún | 2021/10/06 14:00 | Dali Blanch v Strong Kirchheimer | 6-3,3-6,7-6 |
| ITF - M15 Cancún | 2021/10/02 19:50 | Strong Kirchheimer v Christian Langmo | 4-6,4-6 |
| ITF - M15 Cancún | 2021/10/01 22:00 | Strong Kirchheimer v Victor Lilov | 6-4,6-1 |
| ITF - M15 Cancún | 2021/09/30 21:40 | Strong Kirchheimer v Alexander Bernard | 7-5,4-6,6-3 |
| ITF - M15 Cancún | 2021/09/28 17:00 | Strong Kirchheimer v Jose E Yapur | 6-1,6-0 |
| ITF M15 Fayetteville | 2021/11/04 18:25 | Keenan Mayo v Sho Shimabukuro | 2-6,2-6 |
| ITF M15 Fayetteville | 2021/11/03 14:30 | Tyler Zink v Keenan Mayo | 3-6,6-7 |
| ITF M25 Fayetteville | 2021/11/02 14:00 | Oscar Mesquida Berg v Keenan Mayo | 3-6,2-6 |
| ITF M25 Calabasas | 2021/10/26 20:00 | Michael Shabaz v Keenan Mayo | 6-4,3-6,10-6 |
| ITF M25 Calabasas | 2021/10/26 17:00 | Kyle Overmyer v Keenan Mayo | 1-6,2-6 |
| UTR Pro Tennis Series - Sacramento | 2021/10/04 16:30 | Emon Van Loben Sels v Keenan Mayo | 5-7,7-6,5-6 |
| UTR Pro Tennis Series - Kalifornie | 2021/09/01 18:00 | Keenan Mayo v Ryan Nuno | 6-3,3-0 |
| UTR Pro Tennis Series - Kalifornie | 2021/08/30 18:00 | Keenan Mayo v Aidan Mayo | 3-6,4-5 |