EVENT 353 Boys 11/14 Yrs 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 1 | Paul O'LOUGHLIN | 12 | Plymouth Lea | 20:56.62 |
| 3 | 2 | Amos STARKEY | 12 | Gloucester | 20:20.60 |
| 4 | 3 | Storm MUNDAY | 12 | Millfield | 20:13.70 |
| 5 | 4 | Oliver SAUNDERS | 12 | Team Bath AS | 19:42.40 |
| 6 | 5 | Ryan OPENSHAW | 12 | Poole | 19:39.50 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 6 | Tyler HILLIER | 13 | Swindon Dolp | 19:32.98 |
| 2 | 7 | Carter STUHLMACHER | 13 | Poole | 19:30.20 |
| 3 | 8 | Oliver HEARD | 13 | TauntonDeane | 19:12.90 |
| 4 | 9 | Jack PEGLER | 14 | Co Bristol | 19:11.40 |
| 5 | 10 | David O'LOUGHLIN | 13 | Plymouth Lea | 19:10.60 |
| 6 | 11 | Charlie COOK | 14 | Street | 19:10.50 |
| 7 | 12 | Kieran DUFFY | 14 | Poole | 19:10.45 |
| 8 | 13 | William STOODLEY | 12 | Co Bristol | 19:09.49 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 14 | Harry POLKINGHORNE | 12 | Truro City | 19:06.09 |
| 2 | 15 | Archie TYERS | 13 | Exeter City | 19:05.90 |
| 3 | 16 | Thomas DORAN | 13 | Salisbury | 19:05.57 |
| 4 | 17 | Jack CHANNON | 14 | S Bournem'th | 19:05.30 |
| 5 | 18 | Robbie HEMMINGS | 13 | Poole | 19:03.94 |
| 6 | 19 | Robert PETTIT | 14 | Salisbury | 18:56.82 |
| 7 | 20 | Hubert GDANIEC | 13 | Plymouth Lea | 18:56.30 |
| 8 | 21 | Jamie BREW | 14 | Mt Kelly | 18:55.30 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 22 | Euan BOTHAM | 14 | Mt Kelly | 18:55.30 |
| 2 | 23 | Liam OPENSHAW | 14 | Poole | 18:51.10 |
| 3 | 24 | James ANDREW | 13 | TigersharksW | 18:45.80 |
| 4 | 25 | Wyatt WALSH | 14 | Millfield | 18:42.90 |
| 5 | 26 | Kai WEEKS | 14 | Seagulls SC | 18:28.50 |
| 6 | 27 | Sonny CHAMBERLAIN-HYDE | 14 | Seagulls SC | 18:24.31 |
| 7 | 28 | Maxwell GEORGE | 14 | Mt Kelly | 18:24.10 |
| 8 | 29 | Oliver SMART | 14 | Mt Kelly | 18:17.50 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 31 | Thomas TREBILCOCK | 14 | Truro City | 18:01.80 |
| 2 | 33 | Joseph GILES | 14 | Cirencester | 17:41.57 |
| 3 | 35 | Miles WARD | 14 | Seagulls SC | 17:27.50 |
| 4 | 37 | Ben PENHALE | 14 | Clevedon | 17:01.55 |
| 5 | 36 | Jayden WORDLEY | 14 | Team Bath AS | 17:09.13 |
| 6 | 34 | Jonah SILK | 14 | Co Bristol | 17:37.66 |
| 7 | 32 | Ryan SYMINGTON | 14 | Bourmth Coll | 17:55.65 |
| 8 | 30 | Joshua GAMMON | 14 | Barnstaple | 18:04.90 |