| Rank | BIB | Name | Year | Club | Time | ||
|---|---|---|---|---|---|---|---|
| 1 | 10123 | Jenný Ólöf Guðbrandsdóttir | 2003 | 00:24:58 | |||
| 2 | 10118 | Kolfinna Vísa Aspar Eiríksdóttir | 2015 | SFS | 00:26:27 | +01:29 | |
| 3 | 10127 | Álfrún Áslaug Steinunnardóttir | 2013 | SFS | 00:28:50 | +03:52 | |
| 4 | 10121 | Stefanía Diljá Edilonsdóttir | 2005 | 00:30:01 | +05:03 | ||
| 5 | 10132 | Guðrún Ösp Vignisdóttir | 2013 | SFS | 00:30:16 | +05:18 | |
| 6 | 10141 | Eydís Lilja Sigurðardóttir | 2015 | SFS | 00:31:26 | +06:28 | |
| 7 | 10138 | Sara Lovísa Georgsdóttir | 2019 | 00:31:47 | +06:49 | ||
| 8 | 10135 | Heiðrún Helga Hjörleifsdóttir | 1987 | SFS | 00:31:59 | +07:01 | |
| 9 | 10124 | Kristin Asgeirsdottir | 1979 | 00:32:17 | +07:19 | ||
| 10 | 10117 | Esther Ösp Valdimarsdóttir | 1986 | SFS | 00:33:14 | +08:16 | |
| 11 | 10122 | Ragnhildur Ísaksdóttir | 1979 | 00:38:13 | +13:15 | ||
| 12 | 10131 | Katrín Jana Vignisdóttir | 2017 | SFS | 00:38:42 | +13:44 | |
| 13 | 10142 | Hafdís Ylfa Óskarsdóttir | 2020 | SFS | 00:41:55 | +16:57 | |
| 14 | 10137 | Lilja Rún Georgsdóttir | 2021 | 00:45:32 | +20:34 | ||
| 15 | 10136 | Þórdís Adda Haraldsdóttir | 1985 | 00:45:33 | +20:35 | ||
| 16 | 10130 | Jensína Guðrún Pálsdóttir | 1956 | Geislinn | 00:45:36 | +20:38 | |
| 17 | 10128 | Steinunn Eysteinsdóttir | 1981 | SFS | 00:51:44 | +26:46 |