Stadium: Court A Round: 27 Ground: Hardcourt indoor
| ITF M15 Grenoble | 2021/02/10 12:15 | Martin Breysach v Lucas Poullain | 2-6,2-6 |
| ITF M15 Poitiers | 2021/03/18 09:30 | Martin Breysach v Max Wiskandt | 6-2,6-7,6-4 |
| ITF M15 Poitiers | 2021/03/17 09:00 | Mick Veldheer v Martin Breysach | 1-6,6-4,6-7 |
| ITF M15 Bratislava | 2021/03/10 15:15 | Danylo Kalenichenko v Martin Breysach | 7-5,4-6,7-5 |
| ITF M25 Vale Do Lobo | 2021/02/21 11:30 | Lukas H Lilleengen v Martin Breysach | 3-6,6-2,11-9 |
| ITF M15 Grenoble | 2021/02/10 12:15 | Martin Breysach v Lucas Poullain | 2-6,2-6 |
| ITF M15 Monastir | 2021/01/13 08:00 | Simon Yitbarek v Martin Breysach | 7-5,3-6,1-6 |
| ITF M15 Monastir | 2020/12/25 10:30 | Martin Breysach v Benjamin Pietri | 4-6,6-4,1-6 |
| ITF M15 Monastir | 2020/12/24 11:45 | Aziz Ouakaa v Martin Breysach | 3-6,7-5,2-6 |
| ITF M15 Poitiers | 2021/03/18 09:30 | Alafia Ayeni v Lucas Poullain | 6-4,3-6,6-7 |
| ITF M15 Poitiers | 2021/03/17 09:00 | Pierre Delage v Lucas Poullain | 0-6,6-3,0-6 |
| ITF M25 Vale Do Lobo | 2021/03/11 10:30 | Pedro Araujo v Lucas Poullain | 6-3,6-2 |
| ITF M25 Vale Do Lobo | 2021/03/10 13:20 | Lucas Poullain v Gastao Elias | 6-1,6-3 |
| ITF M25 Faro | 2021/03/07 10:55 | Alen Avidzba v Lucas Poullain | 6-2,6-2 |
| ITF M25 Faro | 2021/03/06 10:25 | Tak Khunn Wang v Lucas Poullain | 3-6,6-7 |
| ITF M25 Faro | 2021/03/05 11:00 | Louis Dussin v Lucas Poullain | 0-6,3-6 |
| ITF M25 Faro | 2021/03/02 12:00 | Antoine Bellier v Lucas Poullain | 6-3,6-7,2-6 |