Stadium: Court 13 Round: 27 Ground: Clay
| ITF M15 Majadahonda | 2021/05/06 10:40 | Matteo Martineau v Sebastian Fanselow | 6-1,7-6 |
| ITF M15 Majadahonda | 2021/05/04 09:40 | Matteo Martineau v Pedro Boscardin Dias | 6-1,6-0 |
| ITF M25 Angers | 2021/04/21 09:30 | Matteo Martineau v Lucas Catarina | 6-7,2-6 |
| ITF M25 Reus | 2021/04/18 09:00 | Emilio Nava v Matteo Martineau | 4-6,6-2,6-7 |
| ITF M25 Reus | 2021/04/17 09:35 | Pol Martin Tiffon v Matteo Martineau | 6-2,1-6,4-6 |
| ITF M25 Reus | 2021/04/16 09:00 | Matteo Martineau v Johan Sebastien Tatlot | 5-7,6-1,6-1 |
| ITF M25 Reus | 2021/04/15 12:00 | Matteo Martineau v Georgii Kravchenko | 6-2,6-4 |
| ITF M25 Reus | 2021/04/14 08:00 | Matteo Martineau v Yan Bondarevskiy | 6-0,7-6 |
| ITF M15 Majadahonda | 2021/05/06 10:45 | Alex Rybakov v Daniel Rincon | 6-4,6-3 |
| ITF M15 Majadahonda | 2021/05/05 11:55 | Max Alcala Gurri v Alex Rybakov | 0-6,4-6 |
| Challenger Tallahassee | 2021/04/20 23:20 | Alex Rybakov v Denis Kudla | 6-3,5-7,1-6 |
| Challenger Tallahassee | 2021/04/19 15:00 | Orlando Luz v Alex Rybakov | 2-6,3-6 |
| Challenger Tallahassee | 2021/04/18 21:40 | Alex Rybakov v Michael Geerts | 7-6,7-6 |
| ITF M15 Opatija | 2021/03/26 09:00 | Alex Rybakov v Giacomo Dambrosi | 2-6,6-3,2-6 |
| ITF M15 Opatija | 2021/03/25 11:50 | Alex Rybakov v Francesco Maestrelli | 6-3,7-5 |
| ITF M15 Opatija | 2021/03/24 10:30 | Alex Rybakov v Fermin Tenti | 7-6,6-2 |