Stadium: Court 4 Round: 54 Ground: Clay
| ITF M15 Frederiksberg | 2021/08/01 10:00 | Leonardo Catani v Marcel Marlon Sudzum | 7-6,6-2 |
| ITF M25 Santa Margherita | 2023/04/24 09:55 | Leonardo Catani v Lorenzo Ferri | 2-6,3-6 |
| ITF M25 Santa Margherita | 2023/04/23 11:00 | Leonardo Catani v Leonardo Mazzucchelli | 6-1,6-2 |
| ITF M25 Santa Margherita | 2023/04/16 08:30 | Leonardo Catani v Alessandro Bellifemine | 1-6,2-6 |
| ITF M15 Kish Island | 2023/03/16 06:30 | Maxence Broville v Leonardo Catani | 6-2,6-2 |
| ITF M15 Kish Island | 2023/03/15 10:15 | Leonardo Catani v Dragos N Cazacu | 6-3,6-1 |
| ITF M15 Kish Island | 2023/03/10 06:30 | Gergely Madarasz v Leonardo Catani | 7-6,6-3 |
| ITF M15 Kish Island | 2023/03/09 06:40 | Leonardo Catani v Kabir Hans | 6-3,6-2 |
| ITF M15 Kish Island | 2023/03/07 09:10 | Leonardo Catani v Giovanni Calvano | 2-6,6-2,6-2 |
| ITF M25 Santa Margherita | 2023/04/23 11:00 | Mikalai Haliak v Marcel Marlon Sudzum | 6-4,6-1 |
| ITF M25 Santa Margherita | 2023/04/16 08:30 | Giannicola Misasi v Marcel Marlon Sudzum | 6-0,6-1 |
| ITF M25 Santa Margherita | 2023/04/02 11:30 | Marcel Marlon Sudzum v Daniele Minighini | 1-6,1-6 |
| ITF M25 Saint Dizier | 2021/10/31 13:05 | Marcel Marlon Sudzum v Adan Freire Da Silva | 3-6,3-6 |
| Challenger Barcelona | 2021/10/03 08:00 | Matteo Martineau v Marcel Marlon Sudzum | 6-2,6-2 |
| ITF M25 Pardubice | 2021/09/20 08:00 | Marcel Marlon Sudzum v Stepan Pecak | 3-6,2-6 |
| ITF M25 Pardubice | 2021/09/19 08:00 | Marcel Marlon Sudzum v Dean Thurner | 6-2,6-2 |
| ITF M25 Sierre | 2021/08/29 10:10 | Manfredi Graziani v Marcel Marlon Sudzum | 6-4,6-3 |