Stadium: Center Round: 25 Ground: Hardcourt indoor
| Challenger Biella Qual | 2021/03/14 11:05 | Tristan Lamasine v Luca Vanni | 4-6,4-6 |
| Challenger Biella | 2021/03/11 13:50 | Tristan Lamasine v Andreas Seppi | 6-1,1-6,6-7 |
| Challenger Biella | 2021/03/09 09:00 | Hugo Grenier v Tristan Lamasine | 4-6,2-6 |
| Challenger Potchefstroom | 2021/02/17 10:30 | Dimitar Kuzmanov v Tristan Lamasine | 7-5,7-6 |
| Challenger Potchefstroom | 2021/02/15 12:25 | Roberto Quiroz v Tristan Lamasine | 5-7,5-7 |
| Challenger Potchefstroom | 2021/02/10 08:00 | Peter Polansky v Tristan Lamasine | 6-4,6-4 |
| Challenger Potchefstroom | 2021/02/08 09:30 | Tristan Lamasine v Vaughn Hunter | 7-6,1-6,6-1 |
| Challenger Quimper | 2021/02/01 09:30 | Tristan Lamasine v Tobias Kamke | 5-7,4-6 |
| Challenger Lille | 2021/03/22 10:00 | Christopher Heyman v Jurgen Briand | 4-6,6-3,2-6 |
| Challenger Lille | 2021/03/21 09:00 | Jurgen Briand v Dan Added | 6-2,6-4 |
| ITF M15 Bratislava | 2021/03/12 10:35 | Jurgen Briand v Kyrian Jacquet | 7-6,7-6 |
| ITF M15 Bratislava | 2021/03/11 12:10 | Jan Satral v Jurgen Briand | 6-7,6-4,2-6 |
| ITF M15 Bratislava | 2021/03/09 13:00 | Jurgen Briand v Lukas Pokorny | 7-5,6-2 |
| ITF M15 Bratislava | 2021/03/07 09:00 | Jurgen Briand v Vitaliy Sachko | 1-6,6-2,6-7 |
| ITF M15 Bratislava | 2021/03/06 11:30 | Andrew Paulson v Jurgen Briand | 6-7,1-6 |
| ITF M15 Bratislava | 2021/03/05 12:20 | Patrik Rikl v Jurgen Briand | 5-7,1-6 |