Stadium: Court 3 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Ithaca | 2021/10/04 13:00 | Maier, Jonas v Bernardi, Mattia | 6-2,6-2 |
| ITF M15 Cancun | 2021/09/26 17:00 | Alex Jones v Maier, Jonas | 6-1,6-2 |
| ITF M15 Cancun | 2021/09/23 19:15 | Maier, Jonas v Osgar O'Hoisin | 6-3,4-6,4-6 |
| ITF M15 Cancun | 2021/09/22 18:10 | Wishaya Trongcharoenchaikul 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 Gomez, Lucas | 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 |
| UTR Pro Tennis Series Miami | 2021/11/06 19:30 | Credit Chaiyarin v Kian Vakili | 6-1,0-6,2-5 |
| ITF M15 Ithaca | 2021/11/03 14:00 | Mostardi, Nico v Credit Chaiyarin | 6-4,6-2 |
| ITF M15 Ithaca | 2021/11/02 14:00 | Credit Chaiyarin v Jayaram, Varun | 6-1,6-1 |
| ITF - M15 Vero Beach | 2021/10/20 21:45 | Credit Chaiyarin v Benjamin Kittay | 6-7,4-6 |
| Vero Beach, Fl, Singles Qualifying M-ITF-USA-17A | 2021/10/19 16:00 | Cazaban, Hugo v Credit Chaiyarin | 4-6,4-6 |
| Vero Beach, Fl, Singles Qualifying M-ITF-USA-17A | 2021/10/18 16:00 | Maldonado, Martin v Credit Chaiyarin | 0-6,3-6 |
| ITF M15 Naples | 2021/10/13 14:55 | Credit Chaiyarin v van Emburgh, Jake | 4-6,3-6 |
| ITF M15 Naples | 2021/10/12 13:30 | Marco De Rossi v Credit Chaiyarin | 3-6,6-4,10-6 |