| Date | R | Home v Away | - | |
|---|---|---|---|---|
| 11/26 17:00 | - | Alajuelense U20 v AD San Carlos U20 | W | 2-1 |
| 11/19 20:00 | - | AD San Carlos U20 v Alajuelense U20 | W | 0-2 |
| 11/12 21:00 | - | Alajuelense U20 v Saprissa de Corazon U20 | D | 2-2 |
| 11/05 21:04 | - | Saprissa de Corazon U20 v Alajuelense U20 | D | 1-1 |
| 10/29 22:00 | - | AD San Carlos U20 v Alajuelense U20 | L | 1-0 |
| 10/15 20:00 | - | AD Guanacasteca U20 v Alajuelense U20 | W | 0-2 |
| 10/08 17:00 | - | Alajuelense U20 v AD Guanacasteca U20 | W | 4-1 |
| 03/15 17:10 | - | AD San Carlos U20 v Alajuelense U20 | L | 1-0 |
| 03/06 17:08 | - | Alajuelense U20 v Herediano U20 | W | 3-1 |
| 02/21 19:00 | - | Alajuelense U20 v Santos de Guápiles U20 | W | 5-0 |
| 12/06 20:07 | - | Alajuelense U20 v ADR Jicaral U20 | L | 0-2 |
| 11/29 20:03 | - | ADR Jicaral U20 v Alajuelense U20 | W | 0-2 |
| 12/17 18:30 | - | San Carlos U20 v Alajuelense U20 | D | 1-1 |
| 05/20 15:05 | - | Alajuelense U20 v Guadalupe FC U20 | W | 2-0 |