Stadium: Court 3 Round: 25 Ground: Clay
| ITF M15 Antalya | 2021/04/22 10:55 | Francesco Forti v Andrea Basso | 7-5,1-6,7-5 |
| ITF M15 Antalya | 2021/04/15 08:20 | Antonio Massara v Andrea Basso | 6-7,6-1,6-4 |
| ITF M15 Antalya | 2021/04/14 08:40 | Andrea Basso v Tiago Cacao | 6-1,6-0 |
| ITF M15 Opatija | 2021/03/24 09:00 | Matteo Arnaldi v Andrea Basso | 6-2,6-4 |
| ITF M15 Rovinj | 2021/03/19 12:00 | Andrea Basso v Giovanni Fonio | 6-7,1-6 |
| ITF M15 Rovinj | 2021/03/18 10:30 | Alex Rybakov v Andrea Basso | 6-1,2-6,5-7 |
| ITF M15 Rovinj | 2021/03/17 10:35 | Fermin Tenti v Andrea Basso | 1-6,1-6 |
| ITF M15 Porec | 2021/03/09 12:30 | Davide Galoppini v Andrea Basso | 6-2,6-2 |
| ITF M15 Antalya | 2021/04/08 07:00 | Markos Kalovelonis v Adam Pavlasek | 6-3,6-7,0-6 |
| ITF M15 Antalya | 2021/04/07 08:50 | Markos Kalovelonis v Cheong-Eui Kim | 6-2,6-4 |
| ITF M15 Monastir | 2021/03/17 10:30 | Savva Polukhin v Markos Kalovelonis | 7-6,6-4 |
| ITF M15 Monastir | 2021/03/07 08:00 | Markos Kalovelonis v Savva Polukhin | 5-7,6-4,6-10 |
| ITF M15 Heraklion | 2020/11/25 07:30 | Markos Kalovelonis v Lucas Gerch | 2-6,2-6 |
| ITF M15 Heraklion | 2020/11/18 07:30 | Evan Furness v Markos Kalovelonis | 6-3,6-4 |
| ITF M15 Heraklion | 2020/11/12 11:00 | Luke Johnson v Markos Kalovelonis | 6-3,6-3 |
| ITF M15 Sharm El Sheikh | 2020/10/18 09:00 | Viacheslav Bielinskyi v Markos Kalovelonis | 4-6,7-6,10-8 |