EVENT 158 Mens 14/16 Yrs 400m Medley Team - Heats
Not Competing : 3,8
| Heat Number - 1 |
| Lane | Comp.No. | Name | A.G. | Club/Country | Time |
| 3 | 1 | Potters Bar SC | | Potters Bar | 4:38.64 |
| 4 | 4 | Central Bedfordshire | | C Beds SS | 4:23.00 |
| 5 | 2 | City of Peterborough B | | Co Peterboro | 4:32.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | A.G. | Club/Country | Time |
| 1 | 6 | West Suffolk Swimming | | West Suffolk | 4:18.89 |
| 2 | 9 | City of Peterborough A | | Co Peterboro | 4:12.00 |
| 3 | 11 | Hatfield SC A team | | Hatfield | 4:06.80 |
| 4 | 13 | Basildon and Phoenix A | | Basildon Ph | 3:58.00 |
| 5 | 12 | City of Cambridge SC | | Co Cambridge | 4:06.00 |
| 6 | 10 | Basildon and Phoenix B | | Basildon Ph | 4:07.00 |
| 7 | 7 | Watford SC | | Watford SC | 4:17.70 |
| 8 | 5 | Hemel Hempstead SC | | Hemel Hemp | 4:20.00 |