5.625km 310m
| Pos | Name | Club | Country | Age Class | Time |
|---|---|---|---|---|---|
| 1st | Jessica Orr | CLYDE | GBR | W20 | 52:16 |
| 2nd | Jo Shepherd | INVOC | GBR | W20 | 54:24 |
| 3rd | Kirstin Maxwell | RR | SCO | W20 | 55:07 |
| 4th | Emma Silvennoinen | Paimion Rasti | FIN | W20 | 55:31 |
| 5th | Eveliina Hirvonen | Paimion Rasti | FIN | W20 | 55:57 |
| 6th | Julia Blomquist | BAOC | GBR | W20 | 58:12 |
| 7th | Alison Campbell | DVOA | USA | W20 | 59:27 |
| 8th | Chloe Haines | AIRE | GBR | W20 | 64:42 |
| 9th | Abi Longhurst | FVO | SCO | W20 | 70:58 |
| 10th | Andy Straka | CUOC | GBR | W20 | 72:24 |
| 11th | Charlotte Ward | HALO | GBR | W20 | 74:13 |
| 12th | Emily Wood | SHUOC | GBR | W20 | 78:40 |
| 13th | Jessica Milne | BOK | GBR | W20 | 79:43 |
| 14th | Laura Parkes | HH | GBR | W20 | 81:05 |
| 15th | Lucy Taylor | CLOK | GBR | W20 | 81:41 |
| 16th | Harriet Batten | OD | ENG | W20 | 84:49 |
| 17th | Eleanor Owens | DEE | GBR | W20 | 91:17 |
| 18th | Abigail Kerr | BOK | ENG | W20 | 96:33 |
| 19th | Sophie Davie | SARUM | GBR | W20 | 103:17 |
| 20th | Charlotte Rogers | OD | GBR | W20 | 103:41 |