Heat 3
mercredi 8 août 2018, 12h25 GMT – 12h25 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Jake Wightman | Great Britain | 3′ 40.73″ |
| 2 |  Jakob Ingebrigtsen | Norway | + 0.08″ |
| 3 | Joao Bussotti Neves | Italy | + 0.14″ |
| 4 | Simas Bertašius | Lithuania | + 0.22″ |
| 5 |  Ismael Debjani | Belgium | + 0.36″ |
| 6 | Simon Denissel | FFA - France Athlétisme | + 0.94″ |
| 7 | Elmar Engholm | Sweden | + 1.28″ |
| 8 | Marius Probst | Germany | + 1.64″ |
| 9 | Jan Hochstrasser | Switzerland | + 2.07″ |
| 10 | Tamás Kazi | Hungary | + 2.25″ |
| 11 | Harvey Dixon | Gibraltar | + 13.97″ |