Stadium: MTA 08 Round: 62 Ground: Clay
| ITF - M15 Antalya | 2021/05/30 07:30 | Antonio Caruso v Tanner, Gian Luca | 6-3,6-4 |
| ITF M15 Troisdorf | 2021/05/11 08:00 | Johnson, Luke v Tanner, Gian Luca | 6-7,7-5,11-9 |
| ITF M15 Troisdorf | 2021/05/10 08:00 | Tanner, Gian Luca v Paul Woerner | 6-4,6-7,10-8 |
| 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 - M15 Antalya | 2021/05/31 08:30 | Caspar Schuetze v Loncar, Stefan | 2-6,6-4,11-13 |
| ITF - M15 Antalya | 2021/05/30 07:30 | Kaya Arinc v Caspar Schuetze | 7-6,5-7,5-10 |
| ITF - M15 Antalya | 2021/05/23 07:00 | Caspar Schuetze v Albertoni, Davide | 2-6,3-6 |
| Sibenik, Singles M-ITF-CRO-05A | 2021/05/16 10:00 | Caspar Schuetze v Admir Kalender | 3-6,1-6 |
| ITF M15 Troisdorf | 2021/05/10 08:00 | Johnson, Luke v Caspar Schuetze | 6-2,6-2 |
| ITF M15 Troisdorf | 2021/05/09 08:00 | Naow, Amer v Caspar Schuetze | 1-6,7-6,2-10 |
| ITF M15 Cairo | 2021/04/26 10:30 | Jose Pereira v Caspar Schuetze | 6-4,6-2 |
| ITF M15 Cairo | 2021/04/18 17:30 | Caspar Schuetze v Makhlouf, Sherif | 6-3,1-6,4-10 |