EVENT 510 Mens 14/16 Yrs 400m Freestyle Team - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | A.G. | Club/Country | Time |
| 0 | 1 | Millfield School B | Open | Millfield | 3:47.66 |
| 1 | 3 | West Lothian | Open | West Lothian | 3:46.71 |
| 2 | 5 | City of Sheffield | Open | Co Sheffield | 3:45.93 |
| 3 | 7 | Newcastle | Open | Newcastle | 3:45.83 |
| 4 | 9 | York City Baths Club | Open | York City | 3:45.08 |
| 5 | 8 | RTW Monson | Open | RTW Monson | 3:45.62 |
| 6 | 6 | Wycombe District B | Open | Wycombe Dist | 3:45.91 |
| 7 | 4 | Thanet | Open | Thanet Swim | 3:46.28 |
| 8 | 2 | Woking | Open | Woking | 3:47.60 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | A.G. | Club/Country | Time |
| 0 | 12 | City of Liverpool | Open | Co Liverpool | 3:44.19 |
| 1 | 16 | City of Leeds B | Open | Co Leeds | 3:43.22 |
| 2 | 20 | City of Leeds A | Open | Co Leeds | 3:41.78 |
| 3 | 24 | City of Leicester | Open | Co Leicester | 3:40.44 |
| 4 | 28 | Millfield School A | Open | Millfield | 3:39.54 |
| 5 | 26 | Nova Centurion | Open | Nova Cent'n | 3:40.19 |
| 6 | 22 | Hillingdon | Open | Hillingdon | 3:41.04 |
| 7 | 18 | Hackney | Open | Hackney | 3:42.95 |
| 8 | 14 | Warrender | Open | Warrender Ba | 3:43.64 |
| 9 | 10 | Mount Kelly | Open | Mt Kelly | 3:44.39 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | A.G. | Club/Country | Time |
| 0 | 13 | City of Glasgow | Open | Co Glasgow | 3:44.10 |
| 1 | 17 | Skipton | Open | Skipton | 3:43.21 |
| 2 | 21 | Basildon & Phoenix | Open | Basildon Ph | 3:41.59 |
| 3 | 25 | Portsmouth Northsea | Open | Portsmouth N | 3:40.32 |
| 4 | 29 | Northampton A | Open | Northampton | 3:36.97 |
| 5 | 27 | Wycombe District A | Open | Wycombe Dist | 3:40.13 |
| 6 | 23 | Derwentside | Open | Derwentside | 3:40.47 |
| 7 | 19 | City of Milton Keynes | Open | Co Milton K | 3:42.46 |
| 8 | 15 | Guildford City | Open | Guildford Ct | 3:43.43 |
| 9 | 11 | Stockport Metro | Open | Stockport Mo | 3:44.35 |