Stadion: Court 2 Round: 44 Ground: Hardcourt outdoor
| ITF - M15 - Cancun | 2021/12/06 14:00 | Marcelo Zormann v Hugo Cazaban | 6-3,6-3 |
| ITF - M15 - Cancun | 2021/11/30 16:00 | Marcelo Zormann v Kiranpal Pannu | 4-6,2-6 |
| ITF - M15 - Cancun | 2021/11/29 14:00 | Marcelo Zormann v Lucca Pinto | 7-5,6-0 |
| ITF - M25 - Aparecida de Goiânia | 2021/11/07 18:30 | Marcelo Zormann v Hernando J E Isnardi | 6-7,6-3,9-11 |
| ITF - M15 - Brasilia | 2021/11/06 14:00 | Marcelo Zormann v Gustavo Heide | 2-6,4-6 |
| ITF - M15 - Brasilia | 2021/11/05 14:00 | Marcelo Zormann v Luis Britto | 6-1,6-2 |
| ITF - M15 - Brasilia | 2021/11/04 14:55 | Marcelo Zormann v Fernando Yamacita | 6-2,6-1 |
| ITF - M15 - Brasilia | 2021/11/03 22:35 | Joao Lucas Reis da Silva v Marcelo Zormann | 6-7,6-7 |
| ITF - M15 - Cancun | 2021/12/05 14:00 | Lucca Pinto v Tristan McCormick | 3-6,5-7 |
| ITF - M15 - Naples | 2021/10/12 13:30 | Tristan McCormick v Nikolay Sysoev | 4-6,6-4,10-5 |
| ITF - M15 - Naples | 2021/10/11 13:30 | Tristan McCormick v Parth Aggarwal | 6-4,6-3 |
| ITF - M15 - Naples | 2021/10/06 13:30 | Ricardo Rodriguez-Pace v Tristan McCormick | 7-6,6-2 |
| ITF - M15 - Champaign | 2021/09/15 15:00 | Emile Hudd v Tristan McCormick | 6-3,6-4 |
| ITF - M25 - Champaign | 2021/09/14 17:00 | Tristan McCormick v Murphy Cassone | 7-5,7-6 |
| ITF - M25 - Guayaquil | 2021/08/01 16:30 | Brandon Perez v Tristan McCormick | 4-6,6-3,10-6 |
| ITF - M25 - Portoviejo | 2021/07/30 16:15 | Tristan McCormick v Pol Martin Tiffon | 4-6,6-7 |