| 17:32 - 400 METRES Women - Semi-Final - Heat 1 | START LIST |
| First 2 of each heat (Q) plus the 2 fastest times (q) qualified | |
| Personal Best | Season Best | |||||
| 2 | Carmen GEDLING | LIVERPOOL | 56.40 | 56.40 | ||
| 3 | Sara TOMLINS | SALE | 54.76 | 55.90 | ||
| 4 | Lesley OWUSU | WSE HOUNS | 52.15 | 55.31 | ||
| 5 | Emma DUCK | SOTON | 53.54 | 54.70 | ||
| 6 | Helen KARAGOUNIS | BIRCHFIELD | 52.53 | 53.12 | ||
| 17:39 - 400 METRES Women - Semi-Final - Heat 2 | START LIST |
| First 2 of each heat (Q) plus the 2 fastest times (q) qualified | |
| Personal Best | Season Best | |||||
| 2 | Emma PETERS | CARDIFF | 56.16 | 56.16 | ||
| 3 | Kelly MASSEY | BIRCHFIELD | 55.53 | |||
| 4 | Kim WALL | BASILDON | 53.02 | 53.98 | ||
| 5 | Rebecca SWEENEY | SALE | 55.05 | 55.05 | ||
| 6 | Nicola SANDERS | WSE HOUNS | 50.72 | |||