Stadium: Court 6 Round: 54 Ground: Clay
| ITF M25 Most | 2023/05/21 08:00 | Lukas Velik v Marcel Marlon Sudzum | 6-4,6-1 |
| ITF M25 Santa Margherita | 2023/04/30 08:00 | Leonardo Catani v Marcel Marlon Sudzum | 6-3,6-1 |
| 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 M15 Pazardzhik | 2023/05/25 09:50 | Collin Altamirano v Matyas Fuele | 5-7,4-6 |
| ITF M15 Pazardzhik | 2023/05/24 11:20 | Collin Altamirano v Vadym Konovchuk | 3-6,6-3,7-5 |
| ITF M15 Pazardzhik | 2023/05/22 12:00 | Francesco Ferrari v Collin Altamirano | 1-6,0-6 |
| ITF M15 Antalya | 2023/05/17 06:55 | Collin Altamirano v Paul Woerner | 5-7,6-7 |
| ITF M15 Antalya | 2023/05/16 08:40 | Saveliy Ivanov v Collin Altamirano | 4-6,3-6 |
| ITF M15 Antalya | 2023/05/15 13:00 | Collin Altamirano v Mikail Alimli | 6-7,7-6,10-3 |
| ITF M15 Antalya | 2023/05/14 12:00 | Collin Altamirano v Mousa Shanan Zayed | 6-1,6-2 |
| ITF M15 Antalya | 2023/05/07 07:00 | Alexander Donski v Collin Altamirano | 6-4,6-4 |