Heat 3
vendredi 2 mars 2018, 13h10 GMT – 13h10 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Zoey Clark | Great Britain | 52.75″ |
| 2 |  Justyna Swiety-Ersetic | Poland | + 0.3″ |
| 3 |  Ayomide Folorunso | Italy | + 0.49″ |
| 4 | Kelsey Balkwill | Canada | + 0.54″ |
| 5 | Svetlana Golendova | Kazakhstan | + 0.69″ |
| 6 | Kineke Alexander | St. Vincent & the Grenadines | + 2.71″ |