Stadium: Court 5 Round: 26 Ground: Clay
| ITF - Klosters M25 | 2021/06/22 09:20 | Gian Luca Tanner v Lenny Hampel | 5-7,4-6 |
| ITF - Jablonec Nad Nisou M25 | 2021/05/19 08:00 | Lenny Hampel v Titouan Droguet | 6-2,5-7,2-6 |
| ITF - Jablonec Nad Nisou M25 | 2021/05/18 11:00 | Lenny Hampel v Martin Krumich | 6-3,6-4 |
| ITF - Jablonec Nad Nisou M25 | 2021/05/17 08:30 | Lenny Hampel v Dominik Recek | 6-2,7-5 |
| ITF - Jablonec Nad Nisou M25 | 2021/05/16 11:30 | Lenny Hampel v Kris Krawcewicz | 7-5,6-2 |
| ITF - Praga M25 | 2021/05/11 10:40 | Franco Agamenone v Lenny Hampel | 6-3,6-3 |
| ITF - Praga M25 | 2021/05/10 09:00 | Dominique Graf v Lenny Hampel | 3-6,4-6 |
| ITF - Praga M25 | 2021/05/09 12:30 | Matthew William Donald v Lenny Hampel | 2-6,6-4,8-10 |
| ITF - Klosters M25 | 2021/06/22 09:10 | Daniel Cukierman v Matheus P De Almeida | 1-6,6-7 |
| ITF - Sarajewo M15 | 2021/06/06 08:00 | Matheus P De Almeida v Hernan Casanova | 2-6,0-6 |
| ITF - Sarajewo M15 | 2021/06/05 10:35 | Matheus P De Almeida v Gergely Madarasz | 7-5,6-0 |
| ITF - Sarajewo M15 | 2021/06/04 09:00 | Skander Mansouri v Matheus P De Almeida | 3-6,6-3,2-6 |
| ITF - Sarajewo M15 | 2021/06/03 09:00 | Gilbert S K Junior v Matheus P De Almeida | 6-4,3-6,3-6 |
| ITF - Sarajewo M15 | 2021/06/02 10:50 | Bozo Barun v Matheus P De Almeida | 3-6,2-6 |
| ITF - Kiseljak M25 | 2021/05/30 12:30 | Matheus P De Almeida v Francesco Forti | 6-4,2-6,6-4 |
| ITF - Kiseljak M25 | 2021/05/29 10:00 | Matheus P De Almeida v Aldin Setkic | 6-4,6-2 |