Stadium: TVM Court (3) Round: 62 Ground: Hardcourt outdoor
| ITF M15 Troisdorf | 2021/05/09 08:00 | Tim Handel v Tanner, Gian Luca | 5-7,2-6 |
| ITF M15 Cairo | 2021/05/03 08:00 | Felix Gill v Tanner, Gian Luca | 4-6,6-3,10-7 |
| ITF M15 Cairo | 2021/04/26 08:00 | Tanner, Gian Luca v Syed Naguib, Syed Mohd Agil | 4-6,6-1,8-10 |
| ITF M15 Cairo | 2021/04/18 07:00 | Giacomo Revelli v Tanner, Gian Luca | 6-3,6-2 |
| ITF M25 Meerbusch | 2021/04/12 11:00 | Tanner, Gian Luca v Alexis Boureau | 4-6,6-3,8-10 |
| ITF M25 Meerbusch | 2021/04/11 13:30 | Kai Wehnelt v Tanner, Gian Luca | 6-3,4-6,2-10 |
| ITF - M15 Sharm El Sheikh | 2021/01/31 13:30 | Mate Valkusz v Tanner, Gian Luca | 4-6,6-4,10-6 |
| ITF - M15 Bressuire | 2021/01/18 12:30 | Valentin Lapalu v Tanner, Gian Luca | 6-4,6-2 |
| ITF M15 Troisdorf | 2021/05/09 08:00 | Albertoni, Davide v Paul Woerner | 1-6,4-6 |
| ITF - M15 Antalya | 2021/04/27 09:00 | Paul Woerner v Daniil Glinka | 6-2,2-6,6-10 |
| ITF - M15 Antalya | 2021/04/26 09:00 | Paul Woerner v Elijah Poritzky | 6-2,6-1 |
| ITF - M15 Antalya | 2021/04/25 07:00 | Paul Woerner v Melnic, Vladislav | 6-3,7-6 |
| ITF - M15 Antalya | 2021/04/22 08:55 | Paul Woerner v Fabian Marozsan | 3-6,6-7 |
| ITF - M15 Antalya | 2021/04/21 08:45 | Paul Woerner v Daniel Siniakov | 6-4,6-3 |
| ITF - M15 Antalya | 2021/04/20 07:00 | Paul Woerner v Gabriele Bosio | 6-3,6-0 |
| ITF - M15 Antalya | 2021/04/19 09:00 | Paul Woerner v Salazar, Amador | 6-4,6-3 |