EVENT 158 Mens 14/16 Yrs 400m Medley Team - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | A.G. | Club/Country | Time |
| 1 | 1 | Modernian SC | | Modernians | 4:30.45 |
| 2 | 3 | Hatfield B | | Hatfield | 4:28.00 |
| 3 | 5 | Berkhamsted SC | | Berkhamsted | 4:27.50 |
| 4 | 7 | West Norfolk Swimming | | West Norfolk | 4:25.00 |
| 5 | 6 | Chelmsford SC | | Chelmsford | 4:27.06 |
| 6 | 4 | City of Peterborough B | | Co Peterboro | 4:28.00 |
| 7 | 2 | Basildon & Phoenix B | | Basildon Ph | 4:28.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | A.G. | Club/Country | Time |
| 1 | 9 | Bishops Stortford SC | | Bishop Stort | 4:17.04 |
| 2 | 11 | City of Peterborough A | | Co Peterboro | 4:13.00 |
| 3 | 13 | Basildon & Phoenix A | | Basildon Ph | 4:10.00 |
| 4 | 15 | Linslade Crusaders SC | | Linslade | 4:04.00 |
| 5 | 14 | Hatfield A | | Hatfield | 4:05.00 |
| 6 | 12 | UEA City of Norwich SC | | UEA Norwich | 4:11.14 |
| 7 | 10 | Potters Bar SC | | Potters Bar | 4:13.57 |
| 8 | 8 | West Suffolk Swimming | | West Suffolk | 4:20.03 |