Stadium: Court 6 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Pardubice | 2021/09/20 10:00 | Tomas Lanik v Alan F R Fierros | 2-6,6-4,10-6 |
| ITF M25 Pardubice | 2021/09/19 11:00 | Michalis Sakellaridis v Alan F R Fierros | 6-7,6-4,3-10 |
| ITF M25 Sintra | 2021/09/15 12:25 | Luciano Darderi v Alan F R Fierros | 7-6,2-6,6-4 |
| ITF M25 Sintra | 2021/09/14 13:20 | Daniel Little v Alan F R Fierros | 4-6,6-7 |
| ITF M25 Sintra | 2021/09/13 12:00 | Afonso Portugal v Alan F R Fierros | 2-6,2-6 |
| ITF M25 Sintra | 2021/09/06 13:45 | Fabio Coelho v Alan F R Fierros | 3-6,7-5,11-9 |
| ITF M25 Sintra | 2021/09/05 08:30 | Alan F R Fierros v Luigi Castelletti | 6-2,6-0 |
| ITF M15 Monastir | 2021/08/31 08:00 | Kyle Seelig v Alan F R Fierros | 6-2,6-4 |
| ITF M25 Pardubice | 2021/09/20 08:00 | Noah Thurner v Oscar Galimardanov | 4-6,3-6 |
| ITF M15 Sozopol | 2021/09/13 07:00 | Noah Thurner v Vlad Stoica | 7-5,2-6,9-11 |
| ITF M25 Ajaccio | 2021/07/05 07:00 | Noah Thurner v Simone Agostini | 1-6,2-6 |
| ITF M25 Jablonec Nad Nisou | 2021/05/16 07:30 | Jakub Mensik v Noah Thurner | 6-3,6-0 |
| ITF M15 Troisdorf | 2021/05/09 10:00 | Christopher Patzanovsky v Noah Thurner | 6-0,6-3 |
| ITF M15 Monastir | 2021/03/14 11:00 | Antonio Campo v Noah Thurner | 6-1,6-0 |
| ITF M15 Antalya | 2020/12/15 11:00 | Ilya Snitari v Noah Thurner | 6-2,6-4 |
| ITF M15 Antalya | 2020/12/07 07:00 | Georgii Kravchenko v Noah Thurner | 6-2,6-0 |