Stadium: CENTER COURT Round: 14 Ground: Clay
| Challenger Marbella | 2021/04/03 10:00 | Alessandro Giannessi v Gianluca Mager | 7-6,4-6,1-6 |
| Challenger Marbella | 2021/04/02 12:00 | Martin Klizan v Alessandro Giannessi | 0-6,3-6 |
| Challenger Marbella | 2021/03/31 11:50 | Alessandro Giannessi v Pedro Sousa | 6-4,6-3 |
| Challenger Marbella | 2021/03/29 12:00 | Joao Domingues v Alessandro Giannessi | 3-6,4-6 |
| Challenger Zadar | 2021/03/24 09:00 | Alessandro Giannessi v Nerman Fatic | 6-7,7-5,6-7 |
| Challenger Zadar | 2021/03/22 14:35 | Alessandro Giannessi v Riccardo Bonadio | 7-5,7-5 |
| Challenger Gran Canaria | 2021/03/05 16:05 | Alessandro Giannessi v Carlos Gimeno Valero | 2-6,6-4,2-6 |
| Challenger Gran Canaria | 2021/03/03 13:00 | Alessandro Giannessi v Nikolas Sanchez Izquierdo | 7-6,7-5 |
| ITF M15 Heraklion | 2020/11/09 09:30 | Marko Topo v Tomas Jirousek | 6-3,6-3 |
| ITF M15 Heraklion | 2020/11/08 08:30 | Mick Veldheer v Marko Topo | 6-1,3-6,8-10 |
| ITF M15 Sharm El Sheikh | 2020/10/14 12:10 | Marko Topo v Vladyslav Manafov | 6-7,2-6 |
| ITF M15 Sharm El Sheikh | 2020/10/09 08:00 | Marko Topo v Nick Chappell | 3-6,5-7 |
| ITF M15 Sharm El Sheikh | 2020/10/08 10:45 | Sebastian Prechtel v Marko Topo | 6-7,6-7 |
| ITF M15 Sharm El Sheikh | 2020/10/06 08:00 | Alec Beckley v Marko Topo | 6-2,0-6,2-6 |
| Adriatic Tennis Series | 2020/06/10 12:30 | Pedja Krstin v Marko Topo | 7-5,6-3 |
| Adriatic Tennis Series | 2020/06/09 14:00 | Marko Topo v Carlos Gomez-Herrera | 6-2,6-3 |