| ITF M25 Fayetteville | 2020/11/02 20:30 | Jonas Maier v Kiranpal Pannu | 3-6,4-6 |
| UTR Pro Tennis Series California | 2020/09/25 16:30 | Jonas Maier v Jurabek Karimov | 6-0,6-2 |
| UTR Pro Tennis Series California | 2020/09/24 19:25 | Jonas Maier v Toby D. Boyer | 6-3,3-6,10-8 |
| UTR Pro Tennis Series California | 2020/09/23 15:00 | Martin Redlicki v Jonas Maier | 7-5,6-4 |
| UTR Pro Tennis Series California | 2020/09/22 15:00 | Gage Brymer v Jonas Maier | 5-7,4-6 |
| UTR Pro Tennis Series California | 2020/09/21 18:10 | Alexander Sarkissian v Jonas Maier | 6-7,3-6 |
| UTR Pro Tennis Series California | 2020/09/20 16:20 | Jonas Maier v Ivan Nedelko | 4-6,6-1,3-10 |
| UTR Pro Tennis Series California | 2020/08/14 19:05 | Alec Adamson v Jonas Maier | 2-6,0-6 |
| ITF M15 East Lansing | 2019/11/20 17:45 | Strong Kirchheimer v Keenan Mayo | 6-3,6-3 |
| ITF M25 Claremont | 2019/10/09 17:00 | Liam Broady v Keenan Mayo | 6-1,6-1 |
| ITF M25 Decatur | 2019/07/30 20:45 | Aleksandar Kovacevic v Keenan Mayo | 6-2,6-2 |
| ITF M25 Champaign | 2019/07/26 18:30 | Keenan Mayo v Jenson Brooksby | 4-6,1-6 |
| ITF M25 Champaign | 2019/07/25 17:00 | Keenan Mayo v Kareem Allaf | 7-5,6-7,7-5 |
| ITF M25 Champaign | 2019/07/23 18:30 | Keenan Mayo v Alexander Brown | 6-4,6-7,7-6 |
| ITF M15 Pittsburgh | 2019/07/03 14:00 | Keenan Mayo v Kyle Seelig | 3-6,6-4,6-7 |
| ITF M15 Orlando | 2019/06/20 13:00 | Keenan Mayo v Vasil Kirkov | 3-6,3-6 |