Stadium: M (CC) Round: 25 Ground: Clay
| UTR Pro Tennis Series Mulheim | 2021/07/31 08:30 | 안토네스쿠, 바실 v Hoogmartens, Alexander | 5-7,7-6,6-1 |
| UTR Pro Tennis Series Mulheim | 2021/07/30 13:30 | 덴 헤이젤, 구이 v Hoogmartens, Alexander | 6-2,3-6,4-6 |
| UTR Pro Tennis Series Mulheim | 2021/07/30 07:00 | 빌라르도, 프란세스코 v Hoogmartens, Alexander | 1-6,2-5 |
| UTR Pro Tennis Series Mulheim | 2021/07/29 08:30 | Jim Hendrikx v Hoogmartens, Alexander | 4-6,3-6 |
| UTR Pro Tennis Series Mulheim | 2021/07/28 12:30 | 함페, 스테판 페터 v Hoogmartens, Alexander | 2-6,1-6 |
| UTR Pro Tennis Series Mulheim | 2021/07/26 08:00 | 나우, 하젬 v Hoogmartens, Alexander | 6-4,5-4 |
| ITF M15 Gaiba | 2021/06/09 16:15 | Hoogmartens, Alexander v 베르투시올리, 페데리코 | 7-6,2-6,4-6 |
| ITF M15 Antalya | 2021/03/17 09:55 | 제키크, 밀리안 v Hoogmartens, Alexander | 5-7,7-5,6-2 |
| ITF M15 Esch/Alzette | 2021/07/22 13:05 | 바서만, 데니 v Kypson, Patrick | 2-6,3-6 |
| ITF M15 Esch/Alzette | 2021/07/21 11:10 | 레이트, 윌슨 v 바서만, 데니 | 6-3,1-6,3-6 |
| ITF M15 Esch/Alzette | 2021/07/20 08:55 | 바서만, 데니 v van Assche, Luca | 6-0,6-3 |
| ITF M15 Esch/Alzette | 2021/07/19 11:30 | Alexander Marinov v 바서만, 데니 | 1-6,3-6 |
| ITF M15 Esch/Alzette | 2021/07/18 13:40 | 칼루스, 마크심 v 바서만, 데니 | 1-6,3-6 |
| Challenger Amersfoort | 2021/07/13 14:20 | 바서만, 데니 v 코페잔스, 키멜 | 3-6,7-5,2-6 |
| Challenger Amersfoort | 2021/07/12 09:00 | Lopez San Martin, Alvaro v 바서만, 데니 | 4-6,4-6 |
| Challenger Amersfoort | 2021/07/11 11:40 | 바서만, 데니 v 온클린, 가우시어 | 7-5,6-3 |