EVENT 609 Womens 17 Yrs/Over 400m Medley Team - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | A.G. | Club/Country | Time |
| 3 | 8 | Plymouth Leander A | | Plymouth Lea | 4:33.21 |
| 4 | 12 | Poole | | Poole | 4:34.20 |
| 5 | 10 | Team Mercia | | Team Mercia | 4:35.20 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | A.G. | Club/Country | Time |
| 0 | 2 | Chase | | Chase | 4:49.96 |
| 1 | 4 | Hemel Hempstead | | Hemel Hemp | 4:45.53 |
| 2 | 6 | Hatfield | | Hatfield | 4:34.85 |
| 3 | 9 | Wycombe District | | Wycombe Dist | 4:36.13 |
| 4 | 13 | Woking | | Woking | 4:27.15 |
| 5 | 11 | City of Manchester | | Co Manch Aq | 4:37.11 |
| 6 | 7 | Portsmouth Northsea | | Portsmouth N | 4:39.67 |
| 7 | 5 | Sevenoaks | | Sevenoaks | 4:40.01 |
| 8 | 3 | City Of Peterborough | | Co Peterboro | 4:32.87 |
| 9 | 1 | Staines | | Staines | 4:42.08 |