Semifinal
vendredi 15 décembre 2017, 17h13 GMT – 17h13 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Kirill Prigoda | Russia | 56.02″ |
| 2 | Adam Peaty | Great Britain | + 0.22″ |
| 3 |  Arno Kamminga | Netherlands | + 0.58″ |
| 4 | Fabio Scozzoli | Italy | + 0.65″ |
| 5 |  Fabian Schwingenschlögl | Germany | + 0.85″ |
| 6 |  Ilya Shymanovich | Belarus | + 0.87″ |
| 7 | Ross Murdoch | Great Britain | + 1.53″ |
| 8 |  Nicolò Martinenghi | Italy | + 1.58″ |
| 9 | Ilya Khomenko | Russia | + 1.66″ |
| 10 |  Andrius Šidlauskas | Lithuania | + 1.94″ |
| 11 | Giedrius Titenis | Lithuania | + 2.06″ |
| 12 |  Erik Persson | Sweden | + 2.07″ |
| 13 | Aljaz Kerc | Slovenia | + 2.3″ |
| 14 | Peter John Stevens | Slovenia | + 2.34″ |
| 15 | Tomáš Klobucník | Slovakia | + 2.39″ |
| 16 | Alex Murphy | Ireland | + 2.4″ |