Stadium: MTA 06 Round: 62 Ground: Clay
| ITF - M25 La Nucia | 2021/03/16 10:10 | Amatiste, Gianmarco v Andreu Garcia, Francisco | 4-6,7-5,3-10 |
| ITF - M25 Vale Do Lobo | 2021/03/08 13:00 | Amatiste, Gianmarco v Coelho, Fabio | 0-6,3-6 |
| ITF - M25 Vale Do Lobo | 2021/03/07 12:00 | Henderson, Russell v Amatiste, Gianmarco | 6-3,2-6,7-10 |
| ITF - M25 Faro | 2021/03/01 10:00 | Amatiste, Gianmarco v Alejandro Moro Canas | 0-6,1-6 |
| ITF - M25 Faro | 2021/02/28 09:00 | Allan Deschamps v Amatiste, Gianmarco | 4-6,2-6 |
| ITF - M25 Vale Do Lobo | 2021/02/21 16:30 | Amatiste, Gianmarco v Bradley Paliska | 3-6,6-4,10-12 |
| ITF - M15 Manacor | 2021/01/10 12:30 | Briand, Jurgen v Amatiste, Gianmarco | 6-1,6-1 |
| ITF - M15 Manacor | 2021/01/04 11:30 | Kenny de Schepper v Amatiste, Gianmarco | 6-1,6-2 |
| ITF - M15 Antalya | 2021/04/04 06:30 | Stefanos Sakellaridis v Oh, Seong-Gook | 2-6,4-6 |
| ITF - M15 Antalya | 2021/03/29 07:00 | Gabriel Donev v Stefanos Sakellaridis | 6-3,5-7,10-2 |
| ITF - M15 Antalya | 2021/03/28 06:30 | Stefanos Sakellaridis v Suleyman Deniz Gursoy | 6-0,6-2 |
| ITF - M15 Antalya | 2021/03/22 07:00 | Taiyo Yamanaka v Stefanos Sakellaridis | 7-5,6-0 |
| ITF - M15 Antalya | 2021/03/14 07:00 | Parshutin, Denis v Stefanos Sakellaridis | 6-0,6-3 |
| ITF - M15 Antalya | 2021/03/07 07:00 | Stefanos Sakellaridis v Cengiz, Baran | 6-7,2-6 |
| ITF - M15 Antalya | 2021/03/01 09:00 | Stefanos Sakellaridis v Sebastian Gima | 2-6,1-6 |
| ITF - M15 Antalya | 2021/02/28 09:00 | Stefanos Sakellaridis v Sutekin, Emir | 6-2,6-2 |