Heat 2
mercredi 8 août 2018, 11h38 GMT – 11h38 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Cynthia Bolingo | Belgium | 51.69″ |
| 2 |  Floria Guei | FFA - France Athlétisme | + 0.2″ |
| 3 |  Bianca Razor | Romania | + 0.5″ |
| 4 |  Tamara Salaški | Serbia | + 0.7″ |
| 5 |  Nadine Gonska | Germany | + 0.85″ |
| 6 |  Lada Vondrova | Czech Republic | + 1.52″ |
| 7 |  Irini Vasiliou | Greece | + 1.68″ |
| 7 | Kseniya Aksyonova | Authorised Neutral Athlete | + 1.68″ |