Round 1
| Position | BIB | Name | Team | Echelon | Mark | 
|---|---|---|---|---|---|
| 1 | 163 | Manuela Borges |  ADAAL | M 45 | 03:40.75 | 
| 2 | 682 | Matilde Gonçalves |  CRCDL | SUB-20 | 03:48.47 | 
| 3 | 176 | Sarah Murray |  ADAAL | M 40 | 03:51.68 | 
| 4 | 630 | Beatriz Palma |  CRAL | SUB-20 | 03:55.07 | 
| 5 | 1016 | Sandra Glória |  AABV | M 50 | 04:01.69 | 
| 6 | 151 | Dina Oliveira |  ADAAL | M 55 | 04:03.79 |