Stadium: Court 7 Round: 62 Ground: Clay
| ITF M15 Huy | 2021/08/22 09:05 | Sebastian Santibanez v Louis Cabay | 6-1,6-1 |
| ITF M15 Huy | 2021/08/22 10:30 | Victor Ernaelsteen v Leonardo Catani | 4-6,6-4,8-10 |
| ITF M25 Koksijde | 2021/08/16 08:00 | Victor Ernaelsteen v John Sperle | 3-6,3-6 |
| ITF M25 Koksijde | 2021/08/15 08:00 | Victor Ernaelsteen v Moritz Poswiat | 6-2,6-4 |
| ITF M15 Esch/Alzette | 2021/07/18 07:55 | Alexander Kotzen v Victor Ernaelsteen | 6-1,6-4 |
| ITF M15 Troisdorf | 2021/05/09 13:00 | Quin Verstegen v Victor Ernaelsteen | 0-6,5-7 |
| ITF M15 St Petersburg | 2021/04/12 07:00 | Timur Kiyamov v Victor Ernaelsteen | 6-2,6-2 |
| ITF M15 St Petersburg Qual | 2021/04/11 12:25 | Victor Ernaelsteen v Sergei Pogosian | 6-3,7-5 |
| ITF M15 Monastir | 2021/03/07 12:00 | Samuele Pieri v Victor Ernaelsteen | 6-4,6-3 |