Stadium: Court 1 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Ithaca | 2021/10/04 13:00 | Maier, Jonas v 베르날디, 마티아 | 6-2,6-2 |
| ITF M15 Cancun | 2021/09/26 17:00 | 존스, 알렉스 v Maier, Jonas | 6-1,6-2 |
| ITF M15 Cancun | 2021/09/23 19:15 | Maier, Jonas v 오호이신, 오스가르 | 6-3,4-6,4-6 |
| ITF M15 Cancun | 2021/09/22 18:10 | 트롱차로엔차이쿨, 위사야 v Maier, Jonas | 1-6,3-6 |
| ITF M15 Cancun | 2021/09/21 14:00 | Maier, Jonas v Samuel Sanchez | 6-3,6-1 |
| UTR Pro Tennis Series California | 2021/08/25 21:30 | Maier, Jonas v Gianluca Brunkow | 5-7,2-6 |
| UTR Pro Tennis Series California | 2021/08/24 21:00 | Maier, Jonas v 고메즈, 루카스 | 2-6,3-6 |
| UTR Pro Tennis Series California | 2021/08/23 15:00 | Sah, Timothy v Maier, Jonas | 4-6,6-1,6-3 |