Stadium: Central Round: 54 Ground: Clay
| ITF M25 Alkmaar | 2021/06/20 17:00 | Marcel Marlon Sudzum v Yan Sabanin | 1-6,2-6 |
| ITF M25 Santa Margherita | 2019/09/23 12:00 | Stephanos Schinas v Marcel Marlon Sudzum | 4-6,5-7 |
| ITF M25 Santa Margherita | 2019/09/17 12:00 | Marcel Marlon Sudzum v Horst Rieder | 0-6,0-6 |
| ITF M25 Santa Margherita | 2019/09/16 12:00 | Stephanos Schinas v Marcel Marlon Sudzum | 2-6,7-5,8-10 |
| ITF M25 Santa Margherita | 2019/09/10 13:35 | Horst Rieder v Marcel Marlon Sudzum | 2-6,6-2,10-5 |
| ITF M25 Santa Margherita | 2019/09/09 12:00 | Marcel Marlon Sudzum v Marc Guardeno | 6-1,6-3 |
| ITF M15 Lambermont | 2019/08/19 09:50 | Marcel Marlon Sudzum v Michalis Sakellaridis | 5-7,6-4,8-10 |
| ITF M15 Den Haag | 2019/07/01 07:30 | Marc Dijkhuizen v Marcel Marlon Sudzum | 6-0,6-2 |
| ITF M25 Grasse | 2021/06/13 11:30 | Lucas Bouquet v Adan Freire Da Silva | 6-1,6-2 |
| ITF M25 Most | 2021/05/25 08:00 | Petr Cervinka v Adan Freire Da Silva | 7-5,2-6,10-5 |
| ITF M25 Most | 2021/05/24 08:00 | Adan Freire Da Silva v Daniel Siniakov | 6-3,7-6 |
| ITF M15 Sibenik | 2021/05/17 09:20 | Sebastian Prechtel v Adan Freire Da Silva | 6-2,6-2 |
| ITF M15 Sibenik | 2021/05/16 07:30 | Adan Freire Da Silva v Luigi Castelletti | 4-6,6-4,10-3 |
| ITF M15 Poitiers | 2021/03/14 11:45 | Adan Freire Da Silva v Joffrey De Schepper | 6-7,6-7 |
| ITF M25 Vale Do Lobo | 2021/03/07 11:00 | Adan Freire Da Silva v Goncalo Falcao | 2-6,3-6 |
| ITF M25 Faro | 2021/02/28 10:00 | Adan Freire Da Silva v Francisco Cabral | 3-6,3-6 |