EVENT 101 Mixed 13 Yrs/Over 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 2 | Ezel KAFTAR | 13 | Co Bradford | 6:30.00 |
| 4 | 4 | Peyton BRIGHT | 14 | Lincoln Vulc | 6:04.69 |
| 5 | 3 | Brooke HEMMINGS | 15 | Lincoln Vulc | 6:06.70 |
| 6 | 1 | Dylan WARREN | 13 | Co Bradford | 6:40.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Livia STACEY | 13 | Co Leeds | 5:56.10 |
| 2 | 8 | Emily WOOD | 16 | Co Bradford | 5:48.82 |
| 3 | 10 | Ella BLACKBOURN | 17 | Lincoln Vulc | 5:48.07 |
| 4 | 12 | Olivia BYRNE | 13 | Bo Barnsley | 5:42.58 |
| 5 | 11 | Demilade AYEMOWA | 15 | Co Leeds | 5:47.90 |
| 6 | 9 | Harley GILL | 13 | Co Leeds | 5:48.80 |
| 7 | 7 | Evie THORPE | 13 | Co Leeds | 5:53.50 |
| 8 | 5 | Amelia MATSON | 13 | Co Leeds | 5:59.60 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Ella JORDAN | 15 | Co Leeds | 5:37.96 |
| 2 | 16 | Tomas BICKERS | 13 | Co Leeds | 5:35.70 |
| 3 | 18 | Harrison WAKE | 13 | Co Leeds | 5:31.90 |
| 4 | 20 | Scarlett STRATHIE | 20 | East Leeds | 5:29.83 |
| 5 | 19 | Olaf GRUDOWSKI | 13 | Co Leeds | 5:30.90 |
| 6 | 17 | Eva SYLVESTER | 13 | Co Leeds | 5:35.40 |
| 7 | 15 | Millie HERBERT | 15 | Bo Barnsley | 5:36.71 |
| 8 | 13 | Jacob JONES | 13 | Co Leeds | 5:38.37 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 22 | Robyn HOWARD | 15 | Co Leeds | 5:25.80 |
| 2 | 24 | V PINERA LEVITA | 16 | Co Leeds | 5:14.22 |
| 3 | 26 | Benjamin DERBY | 16 | Lincoln Vulc | 5:02.85 |
| 4 | 28 | Samuel NAYLOR | 25 | Co Bradford | 4:45.04 |
| 5 | 27 | Lilli-Rose CARR | 16 | Co Lincoln P | 4:57.72 |
| 6 | 25 | Robbie DUFF | 14 | Lincoln Vulc | 5:05.70 |
| 7 | 23 | Mia TRAVIS-JONES | 15 | Co Leeds | 5:18.30 |
| 8 | 21 | Emily TALKES | 13 | Lincoln Vulc | 5:26.44 |