Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Trier | 2021/08/24 10:00 | Matthew Romios v Mick Veldheer | 1-6,0-6 |
| ITF M25 Loule | 2021/10/13 09:30 | Mick Veldheer v Adria Soriano Barrera | 1-6,4-6 |
| ITF M25 Setubal | 2021/10/05 14:50 | Alberto Barroso Campos v Mick Veldheer | 6-3,7-5 |
| ITF M15 Allershausen | 2021/09/05 11:00 | Guy Den Ouden v Mick Veldheer | 6-0,6-4 |
| ITF M15 Allershausen | 2021/09/04 10:00 | Mick Veldheer v David Jorda Sanchis | 6-3,6-7,6-1 |
| ITF M15 Allershausen | 2021/09/03 10:00 | Manish Sureshkumar v Mick Veldheer | 1-6,6-4,0-6 |
| ITF M15 Allershausen | 2021/09/02 11:45 | Maximilian Homberg v Mick Veldheer | 3-6,2-6 |
| ITF M15 Allershausen | 2021/08/31 11:25 | Constantin Schmitz v Mick Veldheer | 6-7,4-6 |
| ITF M25 Trier | 2021/08/27 12:00 | Marvin Moeller v Mick Veldheer | 6-3,6-3 |
| ITF M15 Sozopol | 2021/10/13 09:00 | Yanaki Milev v Matthew Romios | 2-6,7-5,15-13 |
| ITF M15 Ulcinj | 2021/09/22 10:05 | Gianmarco Ferrari v Matthew Romios | 6-3,7-5 |
| ITF M15 Ulcinj | 2021/09/14 08:00 | Felix Gill v Matthew Romios | 6-3,3-6,6-4 |
| ITF M15 Allershausen | 2021/09/02 09:00 | Manish Sureshkumar v Matthew Romios | 6-1,5-7,6-3 |
| ITF M15 Allershausen | 2021/09/01 09:00 | Aliaksandr Bulitski v Matthew Romios | 4-6,6-7 |
| ITF M25 Trier | 2021/08/24 10:00 | Matthew Romios v Mick Veldheer | 1-6,0-6 |
| ITF M25 Ueberlingen | 2021/08/17 12:55 | Tim Handel v Matthew Romios | 6-4,6-2 |
| ITF M25 Frankfurt am Main | 2021/08/12 11:15 | Matthew Romios v Lucas Gerch | 6-7,1-6 |