Heats
mercredi 27 juin 2018, 01h00 GMT – 01h00 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Rebecca Jacobson | Australia | 57.08″ |
| 2 | Rebecca Moynihan | New Zealand | + 0.08″ |
| 3 | Paige Flynn | New Zealand | + 0.34″ |
| 4 | Kara Broadbridge | Australia | + 1.2″ |
| 5 | Sydnee Whitty | Hawaii | + 1.75″ |
| 6 | Rosemarie Rova | Fiji | + 2.93″ |
| 7 | Cheyenne Rova | Fiji | + 3.1″ |
| 8 | Jasmine O'Brien | Hawaii | + 4.38″ |
| 9 | Ebony Blackstone | Australia | + 3.28″ |
| 10 | Yolani Blake | Fiji | + 3.99″ |
| 11 | Lushavel Stickland | Samoa | + 4.79″ |
| 12 | Jelani Wetzell | Samoa | + 5.74″ |
| 13 | Mineri Gomez | Guam | + 8.76″ |
| 14 | Georgia-Leigh Vele | Papua New Guinea | + 8.95″ |
| 15 | Osisang Chilton | Palau | + 10.28″ |
| 16 | Margie Winter | Micronesia | + 10.55″ |
| 17 | Jodie-Ana Puamau | Fiji | + 7.19″ |
| 18 | Ann-Marie Hepler | Marshall Islands | + 10.62″ |
| 19 | Jourdyn Adams | Micronesia | + 11.11″ |
| 20 | Neolani Day | Tonga | + 11.99″ |
| 21 | Jinju Thompson | Northern Mariana Islands | + 12.23″ |
| 22 | Sophia Gauran | Northern Mariana Islands | + 12.32″ |
| 23 | Taeyanna Adams | Micronesia | + 14.18″ |
| 24 | Nicole Adams | Micronesia | + 14.19″ |
| 25 | Kestra Kihleng | Micronesia | + 14.46″ |
| 26 | Anthea Murray | Papua New Guinea | + 14.84″ |
| 27 | Kayla Helper | Marshall Islands | + 17.87″ |
| 28 | Roylin Akiwo | Palau | + 18.04″ |
| 29 | Evalyn Tome | Solomon Islands | + 29.5″ |
| 30 | Wendy Charles | Solomon Islands | + 32.06″ |