Stadium: Court 2 Round: 25 Ground: Clay
| Challenger Zadar | 2021/03/23 09:00 | Marco Bortolotti v Vit Kopriva | 1-6,3-6 |
| Challenger Zadar | 2021/03/22 09:00 | Vladyslav Orlov v Marco Bortolotti | 6-2,6-7,6-7 |
| Challenger Zadar | 2021/03/21 13:35 | Victor Vlad Cornea v Marco Bortolotti | 1-6,3-6 |
| ITF M15 Rovinj | 2021/03/16 10:30 | Corentin Denolly v Marco Bortolotti | 6-4,6-4 |
| ITF M15 Porec | 2021/03/10 09:00 | Marco Bortolotti v Matteo Arnaldi | 2-6,3-6 |
| Challenger Gran Canaria Qual | 2021/02/28 14:55 | Marco Bortolotti v Pol Toledo Bague | 1-6,5-7 |
| UTR Pro Tennis Series Barcelona | 2021/02/07 10:30 | Pedro Cachin v Marco Bortolotti | 6-1,5-4 |
| UTR Pro Tennis Series Barcelona | 2021/02/04 09:00 | Marco Bortolotti v Tristan Meraut | 4-1 |
| ITF M15 Monastir | 2021/03/30 08:00 | Luca Castagnola v Julien De Cuyper | 3-6,7-6,8-10 |
| ITF M15 Monastir | 2021/03/29 10:30 | Colin Sinclair v Luca Castagnola | 4-6,6-3,6-10 |
| ITF M15 Monastir | 2021/03/28 08:00 | Kirill Mishkin v Luca Castagnola | 3-6,0-6 |
| ITF M15 Monastir | 2021/03/22 09:00 | Pietro Pampanin v Luca Castagnola | 6-2,2-6,11-9 |
| ITF M15 Monastir | 2021/03/21 15:00 | Luca Castagnola v Ayoub Chakrouni | 6-4,6-3 |
| ITF M15 Monastir | 2021/03/15 08:00 | Alessandro Ingarao v Luca Castagnola | 6-2,5-7,10-6 |
| ITF M15 Monastir | 2021/03/14 10:00 | Fausto Tabacco v Luca Castagnola | 5-7,3-6 |
| ITF M15 Monastir | 2021/03/08 13:30 | Colin Sinclair v Luca Castagnola | 6-3,6-4 |