Stadion: Court 1 Round: 25 Ground: Clay
| ITF - M25 - Klosters | 2021/06/21 06:50 | Daniel Cukierman v Gian Luca Tanner | 6-3,6-4 |
| ITF - M25 - Klosters | 2021/06/20 07:00 | Gian Luca Tanner v Maik Steiner | 6-4,6-2 |
| ITF - M15 - Antalya | 2021/06/07 07:00 | Francisco Comesana v Gian Luca Tanner | 6-1,6-2 |
| ITF - M15 - Antalya | 2021/06/06 07:30 | Gian Luca Tanner v Caspar Schuetze | 1-6,6-4,10-4 |
| ITF - M15 - Antalya | 2021/05/30 07:30 | Antonio Caruso v Gian Luca Tanner | 6-3,6-4 |
| ITF - M15 - Troisdorf | 2021/05/11 08:00 | Luke Johnson v Gian Luca Tanner | 6-7,7-5,11-9 |
| ITF - M15 - Troisdorf | 2021/05/10 08:00 | Gian Luca Tanner v Paul Woerner | 6-4,6-7,10-8 |
| ITF - M15 - Troisdorf | 2021/05/09 08:00 | Tim Handel v Gian Luca Tanner | 5-7,2-6 |
| ITF - M25 - Jablonec Nad Nisou | 2021/05/19 08:00 | Lenny Hampel v Titouan Droguet | 6-2,5-7,2-6 |
| ITF - M25 - Jablonec Nad Nisou | 2021/05/18 11:00 | Lenny Hampel v Martin Krumich | 6-3,6-4 |
| ITF - M25 - Jablonec Nad Nisou | 2021/05/17 08:30 | Lenny Hampel v Dominik Recek | 6-2,7-5 |
| ITF - M25 - Jablonec Nad Nisou | 2021/05/16 11:30 | Lenny Hampel v Kris Krawcewicz | 7-5,6-2 |
| ITF - M25 - Prag | 2021/05/11 10:40 | Franco Agamenone v Lenny Hampel | 6-3,6-3 |
| ITF - M25 - Prag | 2021/05/10 09:00 | Dominique Graf v Lenny Hampel | 3-6,4-6 |
| ITF - M25 - Prag | 2021/05/09 12:30 | Matthew William Donald v Lenny Hampel | 2-6,6-4,8-10 |
| ITF - M15 - Bratislava | 2021/03/10 12:05 | Jan Satral v Lenny Hampel | 6-4,6-3 |