| ITF M15 Cancun | 2021/12/07 16:00 | Marcelo Zormann v Tristan McCormick | 7-5,4-6,13-15 |
| 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 Goiania | 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 |
| UTR Pro Tennis Series Mulheim | 2021/10/17 07:00 | Jing L Weng v Melchior Delloye | 3-6,0-0 |
| UTR Pro Tennis Series Mulheim | 2021/10/16 12:30 | Melchior Delloye v Tom Schonenberg | 6-4,6-4 |
| UTR Pro Tennis Series Mulheim | 2021/10/14 13:30 | Melchior Delloye v Finn Bischof | 3-6,6-3,5-1 |
| UTR Pro Tennis Series Mulheim | 2021/10/13 07:00 | Melchior Delloye v Jose Antonio Rodriguez Rodriguez | 6-1,7-6 |
| UTR Pro Tennis Series Mulheim | 2021/10/12 10:00 | Melchior Delloye v Benjamin Hassan | 1-6,2-5 |
| UTR Pro Tennis Series Mulheim | 2021/10/11 11:30 | Melchior Delloye v Sidane Pontjodikromo | 4-6,0-6 |