Heat 6
mardi 7 août 2018, 10h14 GMT – 10h14 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Adam Peaty | Great Britain | 26.5″ |
| 2 |  Ilya Shymanovich | Belarus | + 0.59″ |
| 3 | Caba Siladji | Serbia | + 0.62″ |
| 4 | Peter John Stevens | Slovenia | + 0.71″ |
| 5 |  Fabian Schwingenschlögl | Germany | + 0.99″ |
| 6 | Nikola Obrovac | Croatia | + 1.12″ |
| 7 | Ioannis Karpouzlis | Greece | + 1.24″ |
| 8 | Emre Sakçi | Turkey | + 1.26″ |
| 9 |  Tobias Bjerg | Denmark | + 1.34″ |
| 10 | Luca Pizzini | Italy | + 1.43″ |