Stadium: Court 5 Round: 25 Ground: Clay
| ITF M15 Monastir | 2021/03/10 10:30 | Yannick Mertens v Constantin Schmitz | 6-0,6-2 |
| ITF M15 Monastir | 2021/03/04 08:30 | Mateus Alves v Constantin Schmitz | 6-3,6-4 |
| ITF M15 Monastir | 2021/03/02 08:30 | Constantin Schmitz v Christoph Negritu | 6-4,7-6 |
| ITF M15 Monastir | 2021/02/23 08:00 | Constantin Schmitz v Jose Fco. Vidal Azorin | 6-4,3-6,4-6 |
| ITF M15 Alkmaar | 2020/08/25 14:30 | Constantin Schmitz v Benjamin Hassan | 4-6,6-3,3-6 |
| Tennis Point Exhibition Series | 2020/08/01 09:30 | Constantin Schmitz v Benjamin Hassan | 6-7,7-6,0-6 |
| Tennis Point Exhibition Series | 2020/07/31 08:00 | Constantin Schmitz v Johannes Haerteis | 0-6,3-6 |
| Tennis Point Exhibition Series | 2020/07/30 08:00 | Constantin Schmitz v Hazem Naw | 4-6,7-6,2-6 |
| ITF M15 Antalya | 2021/03/19 07:30 | Mate Valkusz v Pedro Vives Marcos | 6-2,6-3 |
| ITF M15 Antalya | 2021/03/18 06:50 | Benedikt Henning v Pedro Vives Marcos | 1-6,3-6 |
| ITF M15 Antalya | 2021/03/17 09:25 | Pedro Vives Marcos v Marko Miladinovic | 6-2,6-3 |
| ITF M15 Antalya | 2021/02/23 06:30 | Pedro Vives Marcos v Filip Misolic | 4-6,1-6 |
| ITF M15 Antalya | 2021/02/22 07:00 | Pedro Vives Marcos v Aleksandr Braynin | 6-2,6-0 |
| ITF M15 Antalya | 2021/02/21 06:00 | Pedro Vives Marcos v Elbert Barr | 6-1,6-1 |
| ITF M15 Antalya | 2021/02/14 12:00 | Pedro Vives Marcos v Youcef Rihane | 2-6,6-1,12-14 |
| ITF M15 Antalya | 2021/02/11 07:00 | Pedro Vives Marcos v Filip Cristian Jianu | 4-6,4-6 |