| Pos | Name | Country | Day 1 - Provisional | Day 2 - Provisional | Total | ||
|---|---|---|---|---|---|---|---|
| 1st | Josefina Gardulski | 27:21.27 | (1) | 26:06.37 | (1) | 53:27.64 | |
| 2nd | Poli Saavedra | 29:12.56 | (2) | 28:24.23 | (2) | 57:36.79 | |
| 3rd | Priscila Marzan | 32:05.89 | (4) | 33:30.28 | (3) | 65:36.17 | |
| 4th | Kimberly Hilger | 31:50.41 | (3) | 44:10.42 | (4) | 76:00.83 | |