EVENT 317 Women Open 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 2 | Skye Austin-Burrows | 07 | Rushmoor Ryl | 17:40.40 |
| 2 | 4 | Alice Weston | 06 | Wycombe Dist | 17:36.00 |
| 3 | 6 | Evie Clare | 09 | Stockport Mo | 17:33.60 |
| 4 | 8 | Kerry Hennie | 08 | Warrington W | 17:31.90 |
| 5 | 7 | Leila Flower | 04 | Leatherhead | 17:32.70 |
| 6 | 5 | Isla Ince | 09 | Millfield | 17:34.60 |
| 7 | 3 | Esmee Stockley | 07 | Mt Kelly | 17:37.20 |
| 8 | 1 | Charlotte Heyden | 09 | Wycombe Dist | 17:43.60 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 10 | Lucy Parsons | 07 | Co Liverpool | 17:30.90 |
| 1 | 12 | Hannah Hodgkiss | 06 | Repton | 17:29.90 |
| 2 | 14 | Charlotte Surrell | 07 | Chase | 17:28.40 |
| 3 | 16 | Eleanor Broughton | 06 | Repton | 17:27.70 |
| 4 | 18 | Abbie Roscoe | 09 | Wirral Metro | 17:27.30 |
| 5 | 17 | Elysia Stephens | 09 | Co Birm'ham | 17:27.50 |
| 6 | 15 | Olivia Sheehan | 05 | Wigan BEST | 17:28.30 |
| 7 | 13 | Ella Blocksidge | 06 | Co Salford | 17:28.70 |
| 8 | 11 | Amelia Ayling | 04 | Portsmouth N | 17:30.50 |
| 9 | 9 | Kara Muller | 06 | Guildford Ct | 17:31.30 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 20 | Molly Baker | 07 | Co Sheffield | 17:24.90 |
| 1 | 22 | Almudena Visser Velez | 02 | Exeter City | 17:22.80 |
| 2 | 24 | Ruby Wheeler | 06 | Basildon Ph | 17:22.30 |
| 3 | 26 | Eleanor Kay | 06 | Bolton Metro | 17:18.40 |
| 4 | 28 | Jessica Arundale | 05 | Barnet Copt | 17:17.21 |
| 5 | 27 | Liberty Gordon | 04 | Rushmoor Ryl | 17:17.70 |
| 6 | 25 | Emily Forwood | 04 | Mt Kelly | 17:20.80 |
| 7 | 23 | Alice Young | 08 | Guildford Ct | 17:22.50 |
| 8 | 21 | Louise Bressler | 06 | Guildford Ct | 17:23.60 |
| 9 | 19 | Madison Emment | 07 | Guildford Ct | 17:26.50 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 30 | Harriet Oxley | 05 | Repton | 17:12.50 |
| 1 | 32 | Tsala Bernholt | 06 | Barnet Copt | 17:08.50 |
| 2 | 34 | Hollie Wilson | 08 | Co Leeds | 17:05.00 |
| 3 | 36 | Ruby Griffiths | 06 | Mt Kelly | 16:58.40 |
| 4 | 38 | Amelie Blocksidge | 09 | Co Salford | 16:36.10 |
| 5 | 37 | Lucy Fox | 06 | Wycombe Dist | 16:49.80 |
| 6 | 35 | Evangeline Belt | 06 | Plymouth Lea | 17:03.38 |
| 7 | 33 | Chloe Goodridge | 05 | Northampton | 17:05.20 |
| 8 | 31 | Louise Ashford | 05 | Maidenhead | 17:11.30 |
| 9 | 29 | Georgia Robertson | 05 | Co Sheffield | 17:13.70 |