4.575km 255m
| Pos | No. | Name | Club/Country | Age Class | Time | Behind |
|---|---|---|---|---|---|---|
| Championship time 37:23 | ||||||
| Gold time 39:01 | ||||||
| Silver time 46:50 | ||||||
| 1st | 2642 | Joanne Pickering | WIM (GBR) | W21 | 47:25 | |
| 2nd | 1841 | Helen Hanstock | BOK (GBR) | W21 | 49:11 | +1:46 |
| 3rd | 3022 | Lucy Taylor | LEI (GBR) | W21 | 49:44 | +2:19 |
| 4th | 1462 | Bryony Crickmore | SO (GBR) | W21 | 50:23 | +2:58 |
| 5th | 2578 | Laura Parkes | HH (GBR) | W21 | 52:00 | +4:35 |
| 6th | 1618 | Rachel Emmerson | OD (GBR) | W21 | 53:17 | +5:52 |
| 7th | 3113 | Charlotte Turner | SLOW (GBR) | W21 | 53:27 | +6:02 |
| 8th | 3345 | Suzy Dixon | TVOC (GBR) | W21 | 53:34 | +6:09 |
| 9th | 2641 | Annabel Pickering | WIM (GBR) | W21 | 54:33 | +7:08 |
| 10th | 2193 | Miranda Leaf | DRONGO (GBR) | W21 | 55:45 | +8:20 |
| 11th | 2943 | Karoline Sønsterudbråten | Lillomarka OL (NOR) | W21 | 56:32 | +9:07 |
| 12th | 2473 | Marit Nersten | NTNUI (NOR) | W21 | 57:06 | +9:41 |
| 13th | 2132 | Heather Kieniewicz | HOC (GBR) | W21 | 58:02 | +10:37 |
| 14th | 2342 | Sarah McAdam | RR (GBR) | W21 | 59:04 | +11:39 |
| 15th | 2618 | Maria Pereverzina | (GBR) | W21 | 61:51 | +14:26 |
| Bronze time 62:26 | ||||||
| 16th | 1146 | Katherine Bett | SN (GBR) | W21 | 62:32 | +15:07 |
| 17th | 2818 | Kerria Rowan | SO (GBR) | W21 | 62:49 | +15:24 |
| 18th | 1605 | Rebecca Ellis | WIM (GBR) | W21 | 63:26 | +16:01 |
| 19th | 2588 | Jessica Paton | SN (GBR) | W21 | 63:55 | +16:30 |
| 20th | 3012 | Fiona Tam | SLOW (GBR) | W21 | 64:12 | +16:47 |
| 21st | 1706 | Genevieve Froehlich | BAOC (GBR) | W21 | 68:01 | +20:36 |
| 22nd | 1736 | Clare Garside | RAFO (GBR) | W21 | 68:29 | +21:04 |
| 23rd | 1728 | Elizabeth Gardner | STAG (GBR) | W21 | 68:40 | +21:15 |
| 24th | 2562 | Lucía Parga | Club Fluvial Lugo (ESP) | W21 | 69:06 | +21:41 |
| 25th | 2372 | Vanessa McMillan | HH (GBR) | W21 | 76:32 | +29:07 |
| 26th | 2469 | Fiina Närhi | EUOC (FIN) | W21 | 81:28 | +34:03 |
| 27th | 1776 | Sophie Gordon | UBOC (GBR) | W21 | 87:21 | +39:56 |
| 28th | 1018 | Lily Alger | CUOC (GBR) | W21 | 88:08 | +40:43 |
| 29th | 2375 | Sam McNeilly | LVO (GBR) | W21 | 96:32 | +49:07 |
| 30th | 1643 | Lydia Farzin-Nia | SLOW (GBR) | W21 | 99:59 | +52:34 |
| 31st | 2629 | Fiona Petersen | DRONGO (GBR) | W21 | 103:54 | +56:29 |
| 32nd | 1928 | Ana Rosalia Hernandez Rodriguesz | CUOC (GBR) | W21 | 109:28 | +62:03 |
| 33rd | 3169 | Amy Ward | WCH (GBR) | W21 | 157:49 | +110:24 |
| 2619 | Natalia Pereverzina | (GBR) | W21 | rtd | ||