Stadium: Court 3 Round: 25 Ground: Clay
| ITF M25 Kottingbrunn | 2021/07/20 09:20 | Manda, Calin v Gabriele Datei | 6-3,7-6 |
| ITF M25 Kottingbrunn | 2021/07/19 11:50 | Manda, Calin v Rohrer, Niklas | 6-2,6-3 |
| ITF M25 Telfs | 2021/07/16 12:20 | Manda, Calin v Alexander Shevchenko | 3-6,6-7 |
| ITF M25 Telfs | 2021/07/13 07:25 | Manda, Calin v Ibrahim, Hasan | 6-4,6-2 |
| ITF M25 Telfs | 2021/07/12 07:50 | Manda, Calin v Novansky, Michal | 7-5,6-3 |
| ITF M15 Poprad | 2021/07/05 08:00 | Manda, Calin v Daniel Siniakov | 3-6,0-6 |
| UTR Pro Tennis Series Bucharest | 2021/05/30 11:30 | Borza, Bogdan v Manda, Calin | 4-6,6-2,0-0 |
| ITF - M15 Bucarest | 2021/05/23 08:30 | Manda, Calin v Macovei, Radu Florin | 6-3,6-4 |
| ITF M25 Telfs | 2021/07/14 07:55 | Filip Misolic v Hampel, Lenny | 6-4,6-7,6-4 |
| ITF M25 Velenje | 2021/07/09 10:55 | Rodriguez, Cristian v Hampel, Lenny | 6-4,4-6,6-4 |
| 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 |