| Date | R | Casa v Visitante | - | |
|---|---|---|---|---|
| 03/24 10:00 | - | Belenenses Sub20 v CD Mafra U20 | L | 27-22 |
| 02/25 14:30 | - | Cr B Janeiro U20 v CD Mafra U20 | W | 19-32 |
| 02/18 18:30 | - | CA Rangers Telheiras U20 v CD Mafra U20 | W | 18-29 |
| 01/28 15:00 | - | Cde Camoes U20 v CD Mafra U20 | W | 25-29 |
| 01/14 12:00 | - | CD Mafra U20 v Cr B Janeiro U20 | W | 28-14 |
| 12/17 18:00 | - | Almada AC U20 v CD Mafra U20 | L | 27-24 |
| 12/10 12:00 | - | CD Mafra U20 v Cde Camoes U20 | D | 22-22 |
| 11/19 12:00 | - | CD Mafra U20 v Cr B Janeiro U20 | W | 28-14 |
| 11/12 12:00 | - | CD Mafra U20 v Boa Hora Sub20 | W | 37-30 |
| 11/01 12:00 | - | CD Mafra U20 v Almada AC U20 | L | 22-30 |
| 10/22 13:30 | - | Cr B Janeiro U20 v CD Mafra U20 | W | 20-25 |
| 10/05 14:30 | - | Almada AC U20 v CD Mafra U20 | L | 36-28 |
| 06/18 17:00 | - | Cde Camoes U20 v CD Mafra U20 | W | 24-52 |
| 06/06 19:30 | - | CD Mafra U20 v SL Benfica Sub20 | W | 30-26 |
| 03/12 10:30 | - | Uj Alverca U20 v CD Mafra U20 | L | 40-32 |
| 03/10 21:00 | - | SL Benfica Sub20 v CD Mafra U20 | L | 30-26 |
| 12/11 12:00 | - | CD Mafra U20 v Belenenses Sub20 | L | 20-32 |
| 10/23 11:00 | - | SL Benfica Sub20 v CD Mafra U20 | L | 38-17 |