Stadium: Court 10 Round: 25 Ground: Clay
| ITF M15 Recife | 2021/09/24 16:55 | Daniel Dutra Da Silva v Gustavo Heide | 4-6,4-6 |
| ITF M15 Recife | 2021/09/23 18:05 | Daniel Dutra Da Silva v Lucas Obeid | 6-2,6-0 |
| ITF M15 Recife | 2021/09/22 22:00 | Daniel Dutra Da Silva v Lorenzo Esquici | 6-2,6-1 |
| ITF M25 Lesa | 2021/08/26 10:25 | Harold Mayot v Daniel Dutra Da Silva | 6-4,6-3 |
| ITF M25 Lesa | 2021/08/24 10:00 | Daniel Dutra Da Silva v Stefano Reitano | 6-1,6-3 |
| ITF M25 Frankfurt am Main | 2021/08/13 10:00 | Daniel Dutra Da Silva v Oriol Roca Batalla | 4-6,2-6 |
| ITF M25 Frankfurt am Main | 2021/08/12 10:50 | Christian Sigsgaard v Daniel Dutra Da Silva | 6-7,3-6 |
| ITF M25 Frankfurt am Main | 2021/08/10 13:50 | Daniel Dutra Da Silva v Alexis Gautier | 6-0,6-3 |
| Challenger Lima | 2021/10/02 18:50 | Johan Nikles v Hugo Dellien | 7-6,4-6,2-6 |
| Challenger Lima | 2021/10/01 17:20 | Johan Nikles v Renzo Olivo | 6-3,6-1 |
| Challenger Lima | 2021/09/29 17:05 | Matheus Pucinelli De Almeida v Johan Nikles | 6-7,4-6 |
| Challenger Lima | 2021/09/28 15:00 | Johan Nikles v Adrian Menendez-Maceiras | 6-4,6-2 |
| Challenger Lima | 2021/09/27 15:00 | Johan Nikles v Oscar Jose Gutierrez | 6-4,6-2 |
| Challenger Lima | 2021/09/26 21:20 | Johan Nikles v Gianluca Ballotta | 6-0,6-3 |
| Challenger Ambato | 2021/09/24 17:40 | Johan Nikles v Juan Pablo Ficovich | 6-0,6-7,5-7 |
| Challenger Ambato | 2021/09/22 18:40 | Pedro Sakamoto v Johan Nikles | 3-6,4-6 |