Round 1
| Position | BIB | Name | Team | Echelon | Mark | 
|---|---|---|---|---|---|
| 1 | 42 | Lourenço Ribeiro |  ACPV | SUB-20 | 50.45 | 
| 2 | 276 | Nuno Cordeiro |  JV | SUB-20 | 50.60 | 
| 3 | 445 | Gabriel Pereira Dias |  SLB | SUB-20 | 50.88 | 
| 4 | 190 | Rodrigo Loureiro |  FCES | SUB-20 | 50.92 | 
| 5 | 209 | Guilherme Miguens |  GDPAV | SUB-20 | 51.06 | 
| 6 | 225 | Manuel Silva |  GRECAS | SUB-20 | 51.06 | 
| DNS | 82 | Pedro Chaves |  AJS | SUB-20 | x | 
Round 2
| Position | BIB | Name | Team | Echelon | Mark | 
|---|---|---|---|---|---|
| 1 | 476 | Rúben Silva |  VTSC | SUB-20 | 49.72   | 
| 2 | 408 | Rui Serras |  SCP | SUB-20 | 50.11   | 
| 3 | 404 | Pedro Tavares |  SCP | SUB-20 | 50.29 (X) | 
| 4 | 203 | João Penacho |  GDE | SUB-20 | 50.41   | 
| 5 | 162 | Miguel Antunes |  CPTSC | SUB-20 | 51.18 | 
| 6 | 97 | Miguel Marques |  CAMG | SUB-20 | 51.41 | 
| 7 | 130 | David Moura |  CDFE | SUB-18 | 51.41 |