3.4km 85m
| Pos | No. | Name | Club | Country | Age Class | Time | Behind |
|---|---|---|---|---|---|---|---|
| 1st | 2490 | Megan Keith | INVOC | SCO |
W18 | 20:48 | |
| 2nd | 2758 | Evie Conway | AIRE | GBR |
W18 | 23:59 | +3:11 |
| 3rd | 2910 | Eilidh Campbell | MAROC | GBR |
W18 | 24:38 | +3:50 |
| 4th | 2909 | Kirsty Campbell | MAROC | GBR |
W18 | 25:39 | +4:51 |
| Championship time 26:00 | |||||||
| 5th | 2003 | Alice Wilson | CLYDE | SCO |
W18 | 26:18 | +5:30 |
| 6th | 3077 | Lizzie Stansfield | FVO | GBR |
W18 | 26:25 | +5:37 |
| Gold time 28:00 | |||||||
| 7th | 1996 | Mairi Eades | INT | GBR |
W18 | 29:05 | +8:17 |
| 8th | 2408 | Rosie Spencer | WCOC | GBR |
W18 | 31:06 | +10:18 |
| 9th | 2192 | Laura Harrison | EPOC | GBR |
W18 | 31:25 | +10:37 |
| 10th | 2564 | Chloë Cracknell | SUFFOC | GBR |
W18 | 33:32 | +12:44 |
| Silver time 33:36 | |||||||
| 11th | 2567 | Sophie Jones | HH | GBR |
W18 | 35:19 | +14:31 |
| 12th | 1091 | Isabelle Hodgson | SYO | GBR |
W18 | 36:39 | +15:51 |
| 13th | 1258 | Emma Varmavuo | Rajamäen Rykmentti | FIN |
W18 | 37:19 | +16:31 |
| 14th | 2556 | Jenna Williams | ENG |
W18 | 40:16 | +19:28 | |
| 15th | 1547 | Alexandra Hare | NATO | GBR |
W18 | 40:27 | +19:39 |
| 16th | 3281 | Jordan Pim | WATO | IRL |
W18 | 44:18 | +23:30 |
| Bronze time 44:48 | |||||||
| 17th | 1028 | Isabel Hill | DEE | ENG |
W18 | 47:21 | +26:33 |
| 18th | 2109 | Saskia Jones | DEE | CYM |
W18 | 53:25 | +32:37 |
| 19th | 1450 | Bridget Hall | NEOC | USA |
W18 | 56:34 | +35:46 |
| 20th | 2536 | Oriana Riley | DVOA | USA |
W18 | 56:51 | +36:03 |