Final
dimanche 23 mai 2021, 16h15 GMT – 16h15 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Kristóf Milák | Hungary | 50.18″ |
| 2 |  Josif Miladinov | Bulgaria | + 0.75″ |
| 3 | James Guy | Great Britain | + 0.81″ |
| 4 |  Jakub Majerski | Poland | + 0.93″ |
| 5 |  Federico Burdisso | Italy | + 1.21″ |
| 6 | Mikhail Vekovishchev | Russia | + 1.25″ |
| 7 |  Noè Ponti | Switzerland | + 1.27″ |
| 8 | Szebasztián Szabó | Hungary | + 1.68″ |