Stadium: Court 4 Round: 14 Ground: Clay
| Challenger Biella | 2021/02/11 10:30 | Roberto Marcora v Lorenzo Giustino | 6-7,5-7 |
| ITF Italy F28 | 2017/09/05 14:30 | Lorenzo Giustino v Roberto Marcora | 3-6,4-6 |
| Challenger San Benedetto | 2015/07/14 12:55 | Lorenzo Giustino v Roberto Marcora | 6-4,2-6,6-0 |
| Challenger Marbella | 2021/04/02 10:00 | Gianluca Mager v Roberto Marcora | 4-6,6-3,6-2 |
| Challenger Marbella | 2021/03/31 10:00 | Roberto Marcora v Ernests Gulbis | 6-4,7-5 |
| Challenger Marbella | 2021/03/29 13:30 | Marc Polmans v Roberto Marcora | 3-6,1-6 |
| Challenger Lugano | 2021/03/22 15:00 | Roberto Marcora v Hugo Grenier | 4-6,6-7 |
| Challenger Biella | 2021/03/15 14:05 | Bernard Tomic v Roberto Marcora | 7-6,6-1 |
| ATP Singapore | 2021/02/25 10:30 | Adrian Mannarino v Roberto Marcora | 6-3,7-5 |
| ATP Singapore | 2021/02/24 06:00 | Roberto Marcora v Ernests Gulbis | 7-5,6-4 |
| Challenger Biella | 2021/02/17 11:10 | Soonwoo Kwon v Roberto Marcora | 6-2,6-2 |
| Challenger Marbella | 2021/03/30 09:00 | Mario Vilella Martinez v Lorenzo Giustino | 7-6,6-0 |
| ATP Miami | 2021/03/22 16:00 | Mitchell Krueger v Lorenzo Giustino | 6-4,6-3 |
| ATP Dubai | 2021/03/16 12:50 | Lorenzo Giustino v Aljaz Bedene | 4-6,3-6 |
| ATP Dubai | 2021/03/14 07:00 | Mikhail Kukushkin v Lorenzo Giustino | 6-2,6-2 |
| ATP Dubai | 2021/03/13 10:55 | Andrea Vavassori v Lorenzo Giustino | 3-6,3-6 |
| Challenger Biella | 2021/03/11 10:30 | Brayden Schnur v Lorenzo Giustino | 6-4,6-2 |
| Challenger Biella | 2021/03/09 15:05 | Lorenzo Giustino v Yasutaka Uchiyama | 7-5,6-4 |
| Challenger Gran Canaria | 2021/03/02 10:00 | Lorenzo Giustino v Enzo Couacaud | 6-7,7-5,1-6 |