Stadium: Court 1 Round: 26 Ground: Clay
| ITF M25 Frankfurt am Main MD | 2021/08/12 13:30 | Esteve Lobato/Roca Batalla v Kopp/Veldheer | 7-6,6-4 |
| ITF M25 Frankfurt am Main MD | 2021/08/11 13:30 | Penzlin/Sigsgaard v Kopp/Veldheer | 1-6,3-6 |
| ITF M15 Vejle MD | 2021/07/31 10:10 | Kopp/Veldheer v Ingildsen/Sigsgaard | 4-6,4-6 |
| ITF M15 Vejle MD | 2021/07/30 17:15 | Holmgren/Oetzbach v Kopp/Veldheer | 2-6,3-6 |
| ITF M15 Vejle MD | 2021/07/27 15:15 | Kirkin/Zukas v Kopp/Veldheer | 3-6,6-7 |
| ITF M25 Telfs MD | 2021/07/15 15:15 | Novansky/Palovic v Kopp/Veldheer | 2-6,6-7 |
| ITF M25 Telfs MD | 2021/07/13 12:00 | Novansky/Palovic v Kopp/Veldheer | 2-6,6-7 |
| ITF M15 Antalya MD | 2021/05/18 11:00 | Kopp/Veldheer v Luz/Roveri Sidney | 6-2,2-6,7-10 |