Heat 3
jeudi 25 juillet 2019, 03h00 GMT – 03h00 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Anastasiya Filina | Kyrgyzstan | 1′ 1.07″ |
| 2 | Abiola Ogunbanwo | Nigeria | + 0.24″ |
| 3 | Andjela Antunovic | Montenegro | + 0.31″ |
| 4 | Yusra Mardini | + 0.68″ | |
| 5 | Fjorda Shabani | Kosovo | + 0.98″ |
| 6 | Georgia-Leigh Vele | Papua New Guinea | + 1.38″ |
| 7 | Ssubi Katumba | Uganda | + 2.81″ |
| 8 | Mya DeFreitas | St. Vincent & the Grenadines | + 2.84″ |
| 9 | Mineri Gomez | Guam | + 4.04″ |
| 10 | Margie Winter | Micronesia | + 6.01″ |