Stadium: Hard Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Heráklion | 2021/11/23 07:00 | Blake Ellis v Dax Donders | 6-0,5-7,4-10 |
| ITF M15 Heráklion | 2021/11/22 08:00 | Eduardo Cohen v Dax Donders | 3-6,1-6 |
| ITF M15 Heráklion | 2021/11/21 07:00 | Evangelos Kypriotis v Dax Donders | 4-6,7-5,3-10 |
| ITF M15 Heráklion | 2021/11/19 08:00 | Dax Donders v Nicholas David Ionel | 2-6,3-6 |
| ITF M15 Heráklion | 2021/11/17 12:20 | Alessandro Ragazzi v Dax Donders | 5-7,2-6 |
| ITF M15 Heráklion | 2021/11/16 08:30 | Dong Ju Kim v Dax Donders | 3-6,5-7 |
| ITF M15 Heráklion | 2021/11/14 07:00 | Michel-Alexandre Fortin v Dax Donders | 3-6,2-6 |
| ITF M15 Heráklion | 2021/11/10 11:25 | Dax Donders v Dong Ju Kim | 2-6,6-4,3-6 |
| ITF M15 Heráklion | 2021/11/16 08:30 | Sandro Kopp v Kyle Seelig | 2-6,1-6 |
| ITF M15 Heráklion | 2021/11/10 07:00 | Hazem Naw v Sandro Kopp | 6-2,6-2 |
| ITF M15 Selva Gardena | 2021/10/26 15:55 | Leandro Riedi v Sandro Kopp | 6-4,6-1 |
| ITF M15 Sozopol | 2021/10/13 10:00 | Ben Patael v Sandro Kopp | 6-0,6-0 |
| ITF M15 Sozopol | 2021/10/07 07:00 | Sandro Kopp v Billy Harris | 2-6,6-7 |
| ITF M15 Allershausen | 2021/09/02 10:55 | Sandro Kopp v Juan Ignacio Galarza | 4-6,0-6 |
| ITF M15 Allershausen | 2021/09/01 15:40 | Benito Sanchez Martinez v Sandro Kopp | 6-3,1-6,3-6 |
| ITF M25 Trier | 2021/08/27 10:00 | Sandro Kopp v Tim Handel | 6-3,6-7,6-7 |