| Date | R | Home v Away | - | |
|---|---|---|---|---|
| 03/10 16:00 | - | Cartagines U20 v Sporting San Jose U20 | L | 0-1 |
| 02/10 20:00 | - | Santos de Guápiles U20 v Cartagines U20 | W | 0-1 |
| 11/27 20:00 | - | Alajuelense U20 v Cartagines U20 | L |
|
| 11/19 21:00 | - | Cartagines U20 v Alajuelense U20 | L | 1-4 |
| 10/28 21:00 | - | Cartagines U20 v AD Grecia U20 | D | 2-2 |
| 10/14 17:00 | - | AD San Carlos U20 v Cartagines U20 | D | 3-3 |
| 09/24 00:00 | - | Cartagines U20 v AD Grecia U20 | L | 1-2 |
| 09/03 00:00 | - | Cartagines U20 v AD Guanacasteca U20 | W | 2-1 |
| 05/13 15:00 | - | Cartagines U20 v Saprissa de Corazon U20 | L | 1-4 |
| 04/30 18:30 | - | Cartagines U20 v Santos de Guápiles U20 | L | 0-1 |
| 04/22 16:00 | - | Guadalupe FC U20 v Cartagines U20 | L | 1-0 |
| 04/13 16:00 | - | Municipal Perez Zeledon U20 v Cartagines U20 | D | 1-1 |
| 03/26 16:00 | - | Cartagines U20 v Santos de Guápiles U20 | D | 0-0 |
| 03/18 16:00 | - | Guadalupe FC U20 v Cartagines U20 | D | 0-0 |
| 03/04 15:00 | - | Cartagines U20 v Deportivo Saprissa U20 | L | 0-2 |
| 02/25 17:00 | - | Sporting San Jose U20 v Cartagines U20 | W | 1-3 |
| 02/19 21:00 | - | Santos de Guápiles U20 v Cartagines U20 | L | 1-0 |
| 02/11 15:00 | - | Cartagines U20 v Guadalupe FC U20 | D | 1-1 |
| 02/02 16:00 | - | Municipal Perez Zeledon U20 v Cartagines U20 | L | 2-0 |
| 10/29 16:00 | - | Municipal Perez Zeledon U20 v Cartagines U20 | L | 3-0 |
| 03/13 16:02 | - | Guadalupe FC U20 v Cartagines U20 | L | 1-0 |