Stadium: Court 7 Round: 26 Ground: Clay
| ITF M25 Velenje | 2021/07/06 12:55 | Daniel Dutra Da Silva v Maj Premzl | 6-2,7-5 |
| ITF M25 Wroclaw | 2021/07/01 09:00 | Bega, Alessandro v Daniel Dutra Da Silva | 3-6,1-6 |
| ITF M25 Wroclaw | 2021/06/30 12:55 | Soderlund, Carl v Daniel Dutra Da Silva | 5-7,3-6 |
| ITF M25 Wroclaw | 2021/06/29 08:00 | Daniel Dutra Da Silva v Timo Stodder | 6-3,6-7,10-3 |
| ITF M25 Wroclaw | 2021/06/28 10:00 | Daniel Dutra Da Silva v Ondrej Horak | 3-6,0-6 |
| ITF M25 Wroclaw | 2021/06/27 14:00 | Daniel Dutra Da Silva v Wozniak, Michal | 6-3,6-2 |
| ITF - M15 Antalya | 2021/06/23 12:20 | Daniel Dutra Da Silva v Alex Barrena | 4-6,1-6 |
| ITF - M15 Antalya | 2021/06/10 07:00 | Timo Stodder v Daniel Dutra Da Silva | 1-6,7-5,6-1 |
| ITF M25 Velenje | 2021/07/06 09:45 | Hampel, Lenny v Aldin Setkic | 3-6,6-3,6-2 |
| ITF M25 Klosters | 2021/06/24 09:50 | Hampel, Lenny v Matheus P De Almeida | 1-6,2-6 |
| ITF M25 Klosters | 2021/06/22 09:20 | Tanner, Gian Luca v Hampel, Lenny | 5-7,4-6 |
| ITF M25 Jablonec Nad Nisou | 2021/05/19 08:00 | Hampel, Lenny v Titouan Droguet | 6-2,5-7,2-6 |
| ITF M25 Jablonec Nad Nisou | 2021/05/18 11:00 | Hampel, Lenny v Martin Krumich | 6-3,6-4 |
| ITF M25 Jablonec Nad Nisou | 2021/05/17 08:30 | Hampel, Lenny v Recek, Dominik | 6-2,7-5 |
| ITF M25 Jablonec Nad Nisou | 2021/05/16 11:30 | Hampel, Lenny v Kris Krawcewicz | 7-5,6-2 |
| ITF M25 Prague | 2021/05/11 10:40 | Franco Agamenone v Hampel, Lenny | 6-3,6-3 |