Stadium: Court 3 Round: 14 Ground: Clay
| Challenger - Lille | 2021/03/23 10:45 | Matteo Martineau v Nicola Kuhn | 3-6,2-6 |
| Challenger - Lille | 2021/03/22 10:00 | Matteo Martineau v Tak Khunn Wang | 7-5,7-5 |
| Challenger - Lille | 2021/03/21 10:30 | Benjamin Hassan v Matteo Martineau | 1-6,2-6 |
| ITF M25 - Trimbach | 2021/03/13 11:00 | Elmar Ejupovic v Matteo Martineau | 4-6,7-6,6-3 |
| ITF M25 - Trimbach | 2021/03/12 08:55 | Jakub Paul v Matteo Martineau | 6-7,7-6,3-6 |
| ITF M25 - Trimbach | 2021/03/11 09:00 | Jerome Kym v Matteo Martineau | 6-3,3-6,2-6 |
| ITF M25 - Trimbach | 2021/03/10 13:45 | Remy Bertola v Matteo Martineau | 3-6,3-6 |
| ITF M25 - Faro | 2021/03/02 14:20 | Matteo Martineau v Louis Dussin | 6-3,3-6,4-6 |
| Challenger - Zadar | 2021/03/23 09:00 | Nikolas Sanchez Izquierdo v Matija Pecotic | 3-6,6-3,6-2 |
| Challenger - Biella - Kvalifikation | 2021/03/14 13:35 | Daniel Masur v Matija Pecotic | 6-0,6-3 |
| Challenger - St. Petersborg | 2021/03/09 08:20 | Jiri Lehecka v Matija Pecotic | 6-2,7-6 |
| Challenger - St. Petersborg | 2021/03/08 07:00 | Alessandro Bega v Matija Pecotic | 3-6,3-6 |
| Challenger - St. Petersborg - Kvalifikation | 2021/03/07 07:00 | Matija Pecotic v Uladzimir Ignatik | 0-6,7-6,6-4 |
| Challenger - St. Petersborg | 2021/03/02 10:30 | Matija Pecotic v Andrey Kuznetsov | 6-7,2-6 |
| ITF M25 - Naples | 2021/02/25 17:10 | Alejandro Gonzalez v Matija Pecotic | 6-1,7-5 |
| ITF M25 - Naples | 2021/02/24 21:15 | Alejandro Gomez v Matija Pecotic | 6-7,1-6 |