Final | time | | L | React. | bib | 1. S. Mcpherson | JAM | 50.67s | | 3 | 0.156s | 1684 | 2. N. Williams-mills | JAM | 50.86s | | 5 | 0.260s | 1712 | 3. C. Day | JAM | 51.09s | | 4 | 0.172s | 1657 | 4. A. Montsho | BOT | 51.10s | | 6 | 0.212s | 1221 | 5. F. Abugan | NGR | 52.33s | | 2 | 0.209s | 1934 | 6. K. Alexander | SVG | 52.78s | | 1 | 0.183s | 2290 | 7. S. Miller | BAH | 53.08s | | 7 | 0.159s | 1158 | 8. K. Massey | ENG | 53.08s | | 8 | 0.166s | 1424 |
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| First 2 and Best 2 progressed to Final. |
Semi 1 | time | | L | React | bib | 1. S. Mcpherson | JAM | 50.69s | | 5 | 0.158s | 1684 | 2. K. Massey | ENG | 52.19s | PB | 7 | 0.169s | 1424 | 3. O. Omotosho | NGR | 52.34s | | 6 | 0.200s | 1984 | 4. Rasnayaka Mudiyans | SRI | 52.67s | SB | 3 | 0.172s | 2282 | 5. P. Machettira | IND | 52.88s | | 8 | 0.153s | 1602 | 6. K. Mupopo | ZAM | 53.09s | | 4 | 0.219s | 2454 | 7. A. Jean-baptiste | CAN | 53.61s | | 1 | 0.144s | 1249 | 8. A. Kelly | IVB | 54.35s | | 2 | 0.185s | 1637 |
Semi 2 | time | | L | React | bib | 1. C. Day | JAM | 51.02s | | 6 | 0.217s | 1657 | 2. S. Miller | BAH | 51.58s | | 3 | 0.156s | 1158 | 3. F. Abugan | NGR | 51.71s | SB | 4 | 0.200s | 1934 | 4. K. Alexander | SVG | 52.12s | | 5 | 0.188s | 2290 | 5. S. Cox | ENG | 52.57s | | 8 | 0.176s | 1381 | 6. M. Mitchell | AUS | 53.37s | | 7 | 0.176s | 1083 | 7. S. Fermin | TTO | 53.83s | SB | 1 | 0.202s | 2362 | 8. K. Beckles | GRN | 55.18s | | 2 | 0.280s | 1565 |
Semi 3 | time | | L | React | bib | 1. N. Williams-Mills | JAM | 50.73s | | 6 | 0.372s | 1712 | 2. A. Montsho | BOT | 50.96s | | 5 | 0.261s | 1221 | 3. M. Adeoye | ENG | 52.48s | SB | 3 | 0.180s | 1359 | 4. A. Rubie | AUS | 52.55s | | 1 | 0.162s | 1110 | 5. M. Maiyo | KEN | 52.97s | | 7 | 0.165s | 1764 | 6. R. George | NGR | 53.48s | | 4 | 0.170s | 1960 | 7. L. Shida | UGA | 54.30s | | 2 | 0.268s | 2406 | 8. D. Williams | TTO | 54.63s | | 8 | 0.177s | 2384 |
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Heat 1 | time | L | React | | 1. Chandrika Subashini | SRI | 53.75s | 8 | 0.173 | | 2. Regina George | NGR | 53.92s | 5 | 0.181 | | 3. Poovamma Machettira | IND | 54.01s | 7 | 0.178 | | 4. Wendy Dorr | CAN | 55.33s | 2 | 0.221 | | 5. Betty Burua | PNG | 55.48s | 6 | 0.199 | | 6. Samantha Edwards | ANT | 55.57s | 3 | 0.167 | | 7. Rhodah Njobvu | ZAM | 57.47s | 4 | 0.183 | | 8. Emilly Nanziri | UGA | 59.02s | 1 | 0.203 | |
Heat 2 | time | L | React | | 1. Christine Day | JAM | 52.25s | 4 | 0.193 | | 2. Shaunae Miller | BAH | 52.34s | 3 | 0.171 | | 3. Kelly Massey | ENG | 52.34s | 5 | 0.153 | | 4. Anneliese Rubie | AUS | 52.86s | 2 | 0.155 | | 5. Shawna Fermin | TRI | 54.10s | 7 | 0.215 | | 6. Jacinter Shikanda | KEN | 54.81s | 6 | 0.194 | | 7. Shirley Vunatup | PNG | 1:00.10s | 8 | 0.213 | |
Heat 3 | time | L | React | | 1. Kineke Alexander | SVG | 52.98s | 4 | 0.182 | | 2. Kabange Mupopo | ZAM | 53.18s | 2 | 0.195 | | 3. Maureen Jelagat Maiyo | KEN | 53.21s | 8 | 0.177 | | 4. Ashley Kelly | IVB | 54.26s | 7 | 0.174 | | 5. Vivian Mills | GHA | 55.19s | 5 | 0.164 | | 6. Phumille Ndzinisa | SWZ | 56.38s | 6 | 0.177 | | 7. Mariatu Suma | SLE | 57.15s | 3 | 0.226 | | 8. Halimah Nakaayi | UGA | 57.51s | 1 | 0.184 | |
Heat 4 | time | L | React | | 1. Stephenie Ann Mcpherson | JAM | 52.25s | 8 | 0.156 | | 2. Omolara Omotosho | NGR | 53.02s | 5 | 0.173 | | 3. Domonique Williams | TRI | 54.43s | 3 | 0.211 | | 4. Kanika Beckles | GRN | 54.67s | 2 | 0.180 | | 5. Shawkia Iddrisu | GHA | 55.74s | 6 | 0.161 | | 6. Harriet Pryke | IOM | 56.15s | 7 | 0.176 | | 7. Donna Koniel | PNG | 58.40s | 4 | 0.244 | |
Heat 5 | time | L | React | | 1. Amantle Montsho | BOT | 51.88s | 2 | 0.199 | | 2. Folashade Abugan | NGR | 52.84s | 5 | 0.368 | | 3. Shana Cox | ENG | 53.00s | 3 | 0.188 | | 4. Audrey Jean-Baptiste | CAN | 54.15s | 7 | 0.157 | | 5. Lanece Clarke | BAH | 55.24s | 6 | 0.212 | | -. Rebecca Ansumana | SLE | DQ | 4 | 0.155 | | -. Afia Charles | ANT | DQ | 8 | 0.155 | |
Heat 6 | time | L | React | | 1. Novlene Williams-Mills | JAM | 52.39s | 4 | 0.240 | | 2. Margaret Adeoye | ENG | 53.98s | 5 | 0.176 | | 3. Morgan Mitchell | AUS | 54.28s | 8 | 0.168 | | 4. Leni Shida | UGA | 54.77s | 2 | 0.338 | | 5. Catherine Eke | SLE | 54.80s | 7 | 0.214 | | 6. Romona Modeste | TRI | 55.16s | 3 | 0.172 | | 7. Aurelie Alcindor | MRI | 57.39s | 6 | 0.190 | |
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Lane Heat 1 | PB | SB | bib | 1. E. Nanziri | UGA | | 54.37s | 2402 | 2. W. Dorr | CAN | | 52.51s | 1240 | 3. S. Edwards | ANT | 53.46s | 52.15s | 1014 | 4. R. Njobvu | ZAM | 55.42s | 55.42s | 2457 | 5. R. George | NGR | 51.39s | 50.84s | 1960 | 6. B. Burua | PNG | 55.48s | 53.19s | 2068 | 7. P. Machettira | IND | 51.73s | 52.75s | 1602 | 8. Rasnayaka Mudiyans | SRI | 53.49s | 52.36s | 2282 |
Lane Heat 2 | PB | SB | bib | 2. A. Rubie | AUS | 52.35s | 52.35s | 1110 | 3. S. Miller | BAH | | 50.70s | 1158 | 4. C. Day | JAM | 50.16s | 50.16s | 1657 | 5. K. Massey | ENG | 52.29s | 52.29s | 1424 | 6. J. Shikanda | KEN | 53.91s | 53.91s | 1791 | 7. S. Fermin | TTO | 54.36s | 52.62s | 2362 | 8. S. Vunatup | PNG | 58.21s | 58.21s | 2084 |
Lane Heat 3 | PB | SB | bib | 1. H. Nakaayi | UGA | | 54.75s | 2400 | 2. K. Mupopo | ZAM | | | 2454 | 3. M. Suma | SLE | 55.40s | 55.27s | 2257 | 4. K. Alexander | SVG | 51.23s | 51.23s | 2290 | 5. V. Mills | GHA | 53.04s | 53.04s | 1541 | 6. P. Ndzinisa | SWZ | 55.70s | 53.77s | 2304 | 7. A. Kelly | IVB | 53.54s | 52.71s | 1637 | 8. M. Maiyo | KEN | 51.78s | 51.78s | 1764 |
Lane Heat 4 | PB | SB | bib | 2. K. Beckles | GRN | 53.65s | 51.72s | 1565 | 3. D. Williams | TTO | 52.95s | 52.95s | 2384 | 4. D. Koniel | PNG | 56.17s | 56.17s | 2076 | 5. O. Omotosho | NGR | 51.82s | 51.28s | 1984 | 6. S. Iddrisu | GHA | 55.42s | 55.42s | 1537 | 7. H. Pryke | IOM | | 54.05s | 1629 | 8. S. Mcpherson | JAM | 50.54s | 49.92s | 1684 |
Lane Heat 5 | PB | SB | bib | 2. A. Montsho | BOT | 50.37s | 49.33s | 1221 | 3. S. Cox | ENG | 54.44s | 50.84s | 1381 | 4. R. Ansumana | SLE | 56.43s | 56.43s | 2250 | 5. F. Abugan | NGR | 52.17s | 50.89s | 1934 | 6. L. Clarke | BAH | 53.70s | 52.80s | 1144 | 7. A. Jean-baptiste | CAN | | | 1249 | 8. A. Charles | ANT | 52.77s | 52.49s | 1012 |
Lane Heat 6 | PB | SB | bib | 2. L. Shida | UGA | | | 2406 | 3. R. Modeste | TTO | 54.37s | 53.82s | 2371 | 4. N. Williams-mills | JAM | 50.26s | 49.63s | 1712 | 5. M. Adeoye | ENG | 52.72s | 51.93s | 1359 | 6. A. Alcindor | MRI | 56.49s | 56.49s | 1893 | 7. C. Eke | SLE | 53.86s | 52.37s | 2253 | 8. M. Mitchell | AUS | 52.22s | 52.22s | 1083 |
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