Heat 3
vendredi 26 juillet 2019, 04h11 GMT – 04h11 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Mikaili Charlemagne | St. Lucia | 29.24″ |
| 2 | Georgia-Leigh Vele | Papua New Guinea | + 0.83″ |
| 3 | Aaliyah Palestrini | Seychelles | + 0.94″ |
| 4 | Jamila Sanmoogan | Guyana | + 0.97″ |
| 5 | Élodie Poo-Cheong | Mauritius | + 1.02″ |
| 6 | Aniqah Gaffoor | Sri Lanka | + 1.12″ |
| 7 | Ann-Marie Hepler | Marshall Islands | + 1.53″ |
| 8 | Olivia Fuller | Antigua and Barbuda | + 1.64″ |
| 9 | Anastasiya Tyurina | Tajikistan | + 3.93″ |
| 10 | Domingas Munhemeze | Mozambique | + 5.29″ |