Heat 6
vendredi 3 août 2018, 11h46 GMT – 11h46 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Adam Peaty | Great Britain | 57.89″ |
| 2 |  Arno Kamminga | Netherlands | + 1.64″ |
| 3 | Ilya Khomenko | Russia | + 2.03″ |
| 4 | Fabio Scozzoli | Italy | + 2.18″ |
| 5 |  Darragh Greene | Ireland | + 2.31″ |
| 6 |  Fabian Schwingenschlögl | Germany | + 2.6″ |
| 7 | Alessandro Pinzuti | Italy | + 2.74″ |
| 8 | Dávid Horváth | Hungary | + 3.5″ |
| 9 | Luca Pizzini | Italy | + 3.63″ |
| 10 | Alex Murphy | Ireland | + 4.6″ |