EVENT 521 Womens 400m IM - Heats
Not Competing : 25,27,29
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 2 | Libby MAGILL | 12 | Hatfield | 5:55.25 |
| 3 | 4 | Jessica WOODWARD | 12 | Potters Bar | 5:49.12 |
| 4 | 6 | Ella HALE | 12 | West Suffolk | 5:47.42 |
| 5 | 5 | Eve WRIGHT | 12 | Co Peterboro | 5:48.65 |
| 6 | 3 | Isabelle SANDFORD | 12 | Basildon Ph | 5:51.64 |
| 7 | 1 | Sophie FREEMAN | 11 | Colchester | 5:55.41 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 8 | Grace MADSEN | 12 | UEA Norwich | 5:46.89 |
| 2 | 10 | Abbie BARNWELL | 12 | Team Luton | 5:45.80 |
| 3 | 12 | Kate ANDREW | 13 | Potters Bar | 5:44.84 |
| 4 | 14 | Eleanor BEVAN | 13 | Hemel Hemp | 5:44.39 |
| 5 | 13 | Katie HARRISON | 13 | Potters Bar | 5:44.43 |
| 6 | 11 | Ellie WHEELER | 13 | Basildon Ph | 5:45.07 |
| 7 | 9 | Alice NEWNHAM-STEBBING | 13 | Lstoft & OB | 5:46.11 |
| 8 | 7 | Olivia LEE | 11 | Co Peterboro | 5:47.33 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 16 | Natasha BENTLEY | 13 | Hatfield | 5:43.53 |
| 2 | 18 | Jessica PENKUL | 13 | Bishop Stort | 5:40.86 |
| 3 | 20 | Ellie RUNNALLS | 13 | Chelmsford | 5:40.02 |
| 4 | 22 | Niamh PERRY | 13 | West Suffolk | 5:36.94 |
| 5 | 21 | Eloise SNEDDON | 12 | Colchester | 5:39.65 |
| 6 | 19 | Charlotte SMITH | 13 | teamipswich | 5:40.50 |
| 7 | 17 | Jennifer READ | 13 | West Norfolk | 5:42.64 |
| 8 | 15 | Gracie Mae MARTIN | 12 | Thurrock | 5:43.57 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 24 | Nathalie REUSS | 14 | Co Peterboro | 5:34.87 |
| 2 | 28 | Sophie CROWTHER | 13 | Co Peterboro | 5:29.00 |
| 3 | 31 | Tia WILSON | 13 | Modernians | 5:27.60 |
| 4 | 33 | Rebecca MERRILL | 14 | UEA Norwich | 5:27.04 |
| 5 | 32 | Lucie PECK | 12 | UEA Norwich | 5:27.10 |
| 6 | 30 | Kaelah LAWSON | 13 | Modernians | 5:27.80 |
| 7 | 26 | Lauren STOTT | 13 | Co St Albans | 5:30.81 |
| 8 | 23 | Amber HEAD | 13 | Rochford | 5:35.60 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 35 | Sophie TAYLOR | 14 | St Felix Sch | 5:24.74 |
| 2 | 37 | Jade GOODE | 12 | Co Peterboro | 5:23.49 |
| 3 | 39 | Annabelle KITCHING | 13 | Chelmsford | 5:22.77 |
| 4 | 41 | Holly JASZKIEWICZ | 14 | Co Peterboro | 5:20.85 |
| 5 | 40 | Anna BLAKELEY | 13 | Co Peterboro | 5:21.32 |
| 6 | 38 | Tilly ANEMA | 14 | Norwich Swan | 5:23.00 |
| 7 | 36 | Jenna UTTING | 14 | UEA Norwich | 5:23.70 |
| 8 | 34 | Chloe OGDEN | 14 | Bishop Stort | 5:26.00 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 43 | Mia LEECH | 13 | Co Peterboro | 5:18.00 |
| 2 | 45 | Honey HARVEY | 14 | UEA Norwich | 5:12.76 |
| 3 | 47 | Aiyana LAWSON | 14 | Modernians | 5:10.10 |
| 4 | 49 | Poppy RICHARDSON | 14 | Co Peterboro | 5:03.03 |
| 5 | 48 | Lauren HARRISON | 14 | Co Peterboro | 5:10.00 |
| 6 | 46 | Maddison SAUNDERS | 14 | Co Peterboro | 5:12.20 |
| 7 | 44 | Amelia MONAGHAN | 13 | Co Peterboro | 5:15.65 |
| 8 | 42 | Charlotte ASHWIN | 14 | Mid Beds | 5:18.05 |