Stadium: Campo Centrale Round: 26 Ground: Clay
| Challenger Perugia | 2019/07/10 19:25 | Paolo Lorenzi v Tristan Lamasine | 6-1,7-6 |
| Challenger Rome | 2021/04/20 11:05 | Paolo Lorenzi v Yannick Maden | 7-6,2-6,6-3 |
| ATP Miami | 2021/03/24 17:50 | Ernesto Escobedo v Paolo Lorenzi | 6-3,6-2 |
| ATP Miami | 2021/03/23 17:45 | Jason Jung v Paolo Lorenzi | 4-6,4-6 |
| ATP Miami | 2021/03/22 17:25 | Joao Menezes v Paolo Lorenzi | 6-3,6-7,1-6 |
| ATP Acapulco | 2021/03/14 00:00 | Paolo Lorenzi v Cedrik-Marcel Stebe | 2-6,0-6 |
| Challenger Antalya | 2021/02/02 09:35 | Paolo Lorenzi v Akira Santillan | 7-5,4-6,2-6 |
| Challenger Antalya | 2021/01/29 11:00 | Duje Ajdukovic v Paolo Lorenzi | 3-6,6-4,7-6 |
| Challenger Antalya | 2021/01/28 11:15 | Paolo Lorenzi v Daniel Altmaier | 6-4,6-2 |
| Challenger Rome | 2021/04/20 16:05 | Alex Bolt v Tristan Lamasine | 3-6,4-6 |
| Challenger Rome | 2021/04/19 08:00 | Zizou Bergs v Tristan Lamasine | 6-3,6-7,2-6 |
| Challenger Split | 2021/04/12 08:30 | Kacper Zuk v Tristan Lamasine | 7-6,6-4 |
| Challenger Split Qual | 2021/04/11 12:25 | Frane Nincevic v Tristan Lamasine | 1-6,5-7 |
| Challenger Oeiras | 2021/04/06 10:35 | Tiago Cacao v Tristan Lamasine | 6-2,6-4 |
| Challenger Lille | 2021/03/25 13:25 | Tristan Lamasine v Benjamin Bonzi | 4-6,3-6 |
| Challenger Lille | 2021/03/23 13:00 | Tristan Lamasine v Jurgen Briand | 4-6,6-3,6-4 |
| Challenger Biella Qual | 2021/03/14 11:05 | Tristan Lamasine v Luca Vanni | 4-6,4-6 |