| UTR Pro Tennis Series California | 2021/08/23 15:00 | Sah, Timothy v Maier, Jonas | 4-6,6-1,6-3 |
| ITF M15 Gdynia | 2021/08/08 08:30 | Maier, Jonas v Pawlak, Piotr | 4-6,1-6 |
| ITF M15 Frederiksberg | 2021/08/01 10:00 | Overbeck, Carl Emil v Maier, Jonas | 6-2,6-3 |
| UTR Pro Tennis Series Nevada | 2021/06/24 16:30 | Lagaev, Nick v Maier, Jonas | 6-4,5-2 |
| UTR Pro Tennis Series Nevada | 2021/06/23 18:00 | Kiger, Mac v Maier, Jonas | 6-3,6-7,4-6 |
| UTR Pro Tennis Series Nevada | 2021/06/21 15:00 | Bjorn Swenson v Maier, Jonas | 6-4,6-4 |
| ITF M15 Kouvola | 2021/05/26 13:30 | Maier, Jonas v Joao Victor C Loureiro | 4-6,3-6 |
| ITF M15 Kouvola | 2021/05/25 09:10 | Maier, Jonas v Oskar Stumpf | 6-3,6-0 |
| UTR Pro Tennis Series California | 2021/08/23 16:30 | Gomez, Lucas v Gianluca Brunkow | 7-5,6-3 |
| UTR Pro Tennis Series California | 2021/07/31 15:00 | Rogers, Andrew v Gomez, Lucas | 7-6,6-1 |
| UTR Pro Tennis Series California | 2021/07/30 18:00 | Gomez, Lucas v Ethan Quinn | 6-2,6-2 |
| UTR Pro Tennis Series California | 2021/07/26 18:00 | Vandecasteele, Luke v Gomez, Lucas | 5-7,4-5 |
| UTR Pro Tennis Series California | 2021/07/25 21:00 | Gomez, Lucas v Zharyn, Dzianis | 6-3,6-2 |
| UTR Pro Tennis Series California | 2021/07/24 18:00 | Maxwell McKennon v Gomez, Lucas | 6-1,3-6,6-3 |
| UTR Pro Tennis Series California | 2021/07/23 16:30 | Gomez, Lucas v Kyle Kang | 7-6,6-6 |
| UTR Pro Tennis Series California | 2021/07/21 19:30 | Ventre, Alessandro-Damiano v Gomez, Lucas | 6-3,5-7,3-6 |