Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Gaiba | 2021/06/09 10:10 | Andrea Basso v Luca Giacomini | 7-6,6-0 |
| ITF M15 Prijedor | 2021/05/14 07:00 | Luca Giacomini v Miljan Zekic | 2-6,4-6 |
| ITF M15 Prijedor | 2021/05/11 12:35 | Luca Giacomini v Gilbert S K Junior | 6-3,1-6,6-1 |
| ITF M15 Cairo | 2021/04/21 14:55 | Luca Giacomini v Daniel Michalski | 6-4,6-7,1-6 |
| ITF M15 Cairo | 2021/04/14 14:45 | Filip Misolic v Luca Giacomini | 4-6,6-4,6-2 |
| ITF M15 Monastir | 2021/03/19 08:00 | Raphael Collignon v Luca Giacomini | 6-2,6-4 |
| ITF M15 Monastir | 2021/03/18 10:15 | Luca Giacomini v Laurent Lokoli | 6-1,2-6,6-0 |
| ITF M15 Monastir | 2021/03/17 08:25 | Alessandro Ingarao v Luca Giacomini | 0-6,6-7 |
| ITF M15 Monastir | 2021/06/08 11:00 | Siddhant Banthia v Duckhee Lee | 6-3,2-6,6-4 |
| Challenger Oeiras | 2021/04/06 09:00 | Hugo Grenier v Duckhee Lee | 6-0,6-3 |
| Challenger Oeiras | 2021/03/30 12:35 | Duckhee Lee v Tiago Cacao | 3-6,4-6 |
| ITF M15 Antalya | 2021/03/26 07:00 | Duckhee Lee v Dragos Nicolae Madaras | 5-7,3-6 |
| ITF M15 Antalya | 2021/03/24 08:00 | Duckhee Lee v Vladislav Sveridenko | 6-3,6-0 |
| ITF M15 Antalya | 2021/03/18 06:55 | Duckhee Lee v Mate Valkusz | 1-6,1-6 |
| Challenger St. Petersburg | 2021/03/08 13:05 | Duckhee Lee v Alexey Vatutin | 6-0,1-6,1-6 |
| Challenger St. Petersburg | 2021/03/02 08:55 | Roberto Quiroz v Duckhee Lee | 6-2,6-2 |