Stadium: Court 5 Round: 62 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/07/25 09:00 | Ben Abdallah, Skander v Alec Deckers | 2-6,3-6 |
| ITF M25 The Hague | 2021/06/27 08:00 | Netuschil, Marvin v Alec Deckers | 6-4,6-2 |
| ITF M25 Alkmaar | 2021/06/20 17:00 | Alec Deckers v Guy Den Heijer | 3-6,7-6,4-10 |
| ITF - M15 Héraklion | 2021/06/08 08:00 | Cohen, Eduardo v Alec Deckers | 3-6,7-6,10-7 |
| ITF - M15 Héraklion | 2021/06/07 07:30 | Alec Deckers v Boyer, Toby D | 7-6,6-1 |
| ITF - M15 Héraklion | 2021/06/02 08:20 | Petros Tsitsipas v Alec Deckers | 6-4,6-4 |
| ITF - M15 Héraklion | 2021/05/26 08:35 | Daniel Cox v Alec Deckers | 6-1,6-0 |
| ITF - M15 Héraklion | 2020/11/15 08:00 | Dagan, Guy v Alec Deckers | 0-6,1-6 |
| ITF - M15 Monastir | 2021/07/20 10:10 | Sadaoui, Mehdi v Matthew Dellavedova | 7-5,7-5 |
| ITF - M15 Monastir | 2021/07/19 13:00 | Jacob Brumm v Matthew Dellavedova | 6-2,6-4 |
| ITF M25 Idanha-A-Nova | 2021/07/11 08:00 | Matthew Dellavedova v Goncalo Falcao | 4-6,4-6 |
| ITF M15 Almada | 2021/07/05 11:30 | Kuzey Cekirge v Matthew Dellavedova | 6-3,6-3 |
| ITF M15 Almada | 2021/07/04 08:30 | Alves, Simao v Matthew Dellavedova | 2-6,5-7 |
| ITF - M15 Héraklion | 2021/06/07 07:30 | Matthew Dellavedova v Guberman, Yaron | 4-6,4-6 |
| ITF - M15 Héraklion | 2021/06/06 09:00 | Nicolas Rafael Goldberg Alviani v Matthew Dellavedova | 2-6,0-6 |
| ITF - M15 Héraklion | 2021/05/30 09:00 | Stalder, Reese v Matthew Dellavedova | 6-3,2-6,10-4 |