Stadium: Court 2 Round: 25 Ground: Clay
| ITF M25 - Wetzlar | 2021/08/03 09:00 | Matthew Romios v Daniel Paty | 6-4,7-5 |
| ITF M25 - Wetzlar | 2021/08/02 12:45 | Matthew Romios v David Tesic | 6-1,6-2 |
| ITF M15 - Esch/Alzette | 2021/07/20 13:00 | Matthew Romios v Andreja Petrovic | 7-6,4-6,3-6 |
| UTR Pro Tennis Series Bendigo | 2021/01/22 05:00 | Matthew Romios v Thomas Bosancic | 3-6,1-4 |
| UTR Pro Tennis Series Bendigo | 2021/01/19 23:00 | Matthew Romios v Brydan Klein | 3-6,6-4,1-6 |
| UTR Pro Tennis Series Bendigo | 2021/01/19 01:00 | Matthew Romios v Alex Bulte | 7-6,6-7,6-3 |
| UTR Pro Tennis Series Bendigo | 2021/01/18 00:30 | Matthew Bosancic v Matthew Romios | 3-6,3-6 |
| UTR Pro Tennis Series - Melbourne | 2020/12/08 01:00 | Li Tu v Matthew Romios | 4-6,6-1,6-2 |
| ITF M25 Marburg | 2021/07/06 16:15 | Max Wiskandt v Kyrian Jacquet | 6-2,6-4 |
| ITF M25 - Alkmaar | 2021/06/20 11:00 | Marvin Moeller v Max Wiskandt | 7-6,6-3 |
| ITF - M15 Heraklion | 2021/05/23 08:00 | Eleftherios Neos v Max Wiskandt | 3-6,2-6 |
| ITF - M15 Heraklion | 2021/05/20 09:50 | Max Wiskandt v Yshai Oliel | 6-3,1-6,2-6 |
| ITF - M15 Heraklion | 2021/05/18 10:10 | Lorenzo Claverie v Max Wiskandt | 4-6,4-6 |
| ITF M15 - Troisdorf | 2021/05/12 12:00 | Yannick Mertens v Max Wiskandt | 7-6,6-3 |
| ITF M25 - Meerbusch | 2021/04/11 14:00 | Hugo Voljacques v Max Wiskandt | 4-6,6-1,10-0 |
| ITF - M15 Poitiers | 2021/03/18 09:30 | Martin Breysach v Max Wiskandt | 6-2,6-7,6-4 |