Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 291 | João Vieira |
SCP
|
M 45 | 20:24.78 (~) |
| 2 | 176 | Eduardo Camarate |
JV
|
SUB-20 | 20:55.08 |
| 3 | 81 | Manuel Marques |
AJS
|
M 45 | 22:20.40 |
| 4 | 53 | João Afonso Olim |
ADRAP
|
SEN | 22:25.61 (<) |
| 5 | 11 | Amaro Teixeira |
ACPV
|
M 35 | 22:43.35 (~ ~) |
| 6 | 241 | Luís Carneiro |
SCB
|
SEN | 24:58.64 |