| Heat 1 | | time | | | 1. Teresiah Muthoni Gateri |  Kenya | 4:33.11 | Q, SB | | 2. Jessica Hull |  Australia | 4:34.20 | Q | | 3. Abbey Caldwell | Australia | 4:34.87 | Q, SB | | 4. Jemma Reekie |  Scotland | 4:35.15 | Q, SB | | 5. Karabo More |  South Africa | 4:37.97 | Q, SB | | 6. Simone Plourde |  Canada | 4:38.50 | Q, SB | | 7. Melissa Courtney-Bryant |  Wales | 4:39.50 | SB | | 8. Kate Current | Canada | 4:39.66 | | | 9. Revee Walcott-Nolan |  England | 4:44.93 | SB | | 10.Maureen Chebet |  Uganda | 5:09.81 | SB | | 11.Jane Kargbo |  Sierra Leone | 5:22.20 | SB |
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| Heat 2 | | time | | | 1. Claudia Hollingsworth | Australia | 4:31.17 | Q, PB | | 2. Lucia Stafford | Canada | 4:31.27 | Q, SB | | 3. Ava Lloyd | Wales | 4:31.41 | Q, PB | | 4. Naomi Korir | Kenya | 4:31.80 | Q, SB | | 5. Rosemary Longisa | Kenya | 4:32.02 | Q | | 6. Sarah Calvert | Scotland | 4:32.04 | Q, SB | | 7. Erin Wallace | Scotland | 4:32.08 | SB | | 8. Katie Snowden | England | 4:33.46 | | | 9. Manqabang Tsibela |  Lesotho | 4:45.44 | SB | | 10.Gina McNamara |  Malta | 4:48.33 | | | 11.Hamida Mussa |  Tanzania | 5:01.34 | SB | | 12.Scholastica Herman |  Papua New Guinea | 5:14.08 | |
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