Round Summary
Official results

400 Metres - W   Semi-Final
first 2 of each heat (Q) plus the 2 fastest times (q) qualified.
Heat 1
27 august 2007 - 21:10
Position Lane Bib Athlete Country Mark . React
1 6 590 Novlene Williams JAM 49.66 Q (SB) 0.206
2 4 677 Ana Guevara MEX 50.19 Q (SB) 0.213
3 7 259 Ilona Usovich BLR 50.31 q (NR) 0.182
4 8 556 Joanne Cuddihy IRL 50.73 (NR) 0.167
5 9 473 Lee McConnell GBR 51.07 (SB) 0.217
6 2 362 Indira Terrero CUB 51.08 . 0.164
7 5 968 Natasha Hastings USA 51.45 . 0.163
8 3 609 Asami Tanno JPN 51.81 (SB) 0.199
Heat 2
27 august 2007 - 21:18
Position Lane Bib Athlete Country Mark . React
1 7 474 Nicola Sanders GBR 49.77 Q (PB) 0.174
2 5 793 Natalya Antyukh RUS 49.93 Q (SB) 0.190
3 6 1003 DeeDee Trotter USA 50.31 q . 0.179
4 4 592 Shericka Williams JAM 50.37 (SB) 0.181
5 3 229 Christine Amertil BAH 51.18 . 0.209
6 8 570 Daniela Reina ITA 51.99 (SB) 0.198
7 2 542 Barbara Petráhn HUN 52.12 . 0.195
8 9 535 Aliann Pompey GUY 53.58 . 0.193
Heat 3
27 august 2007 - 21:26
Position Lane Bib Athlete Country Mark . React
1 4 477 Christine Ohuruogu GBR 50.16 Q (PB) 0.200
2 5 1006 Mary Wineberg USA 50.27 Q . 0.185
3 6 839 Tatyana Veshkurova RUS 50.71 . 0.172
4 8 267 Amantle Montsho BOT 50.90 (NR) 0.242
5 7 589 Shereefa Lloyd JAM 51.00 (PB) 0.179
6 2 703 Christy Ekpukhon Ihunaegbo NGR 51.60 . 0.184
7 9 779 Ionela Târlea-Manolache ROM 51.62 . 0.152
8 3 360 Aymeé Martínez CUB 57.77 . 0.321

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