Qualification Round
lundi 6 août 2018, 17h05 GMT – 17h40 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Victor Coroller | FFA - France Athlétisme | 50.1″ |
| 2 | Denys Nechyporenko | Ukraine | + 0.16″ |
| 3 | Tibor Koroknai | Hungary | + 0.24″ |
| 4 | Alain-Hervé Mfomkpa | Switzerland | + 0.24″ |
| 5 | Maksims Sincukovs | Latvia | + 0.29″ |
| 6 | Emir Bekric | Serbia | + 0.36″ |
| 7 | Jaak-Heinrich Jagor | Estonia | + 0.37″ |
| 8 | Muhammad Abdalla Kounta | FFA - France Athlétisme | + 0.5″ |
| 9 | Mate Koroknai | Hungary | + 0.6″ |
| 10 | Aleksandr Skorobogatko | Authorised Neutral Athlete | + 0.64″ |
| 11 | Michal Brož | Czech Republic | + 0.64″ |
| 12 | Martin Kucera | Slovakia | + 0.65″ |
| 13 | José Bencosme de Leon | Italy | + 0.7″ |
| 14 | Dany Brand | Switzerland | + 0.72″ |
| 15 |  Nick Smidt | Netherlands | + 0.86″ |
| 16 | Vít Müller | Czech Republic | + 0.9″ |
| 17 | Danylo Danylenko | Ukraine | + 0.92″ |
| 18 | Jakub Mordyl | Poland | + 1.05″ |
| 19 | Isak Andersson | Sweden | + 1.08″ |
| 20 | Sebastian Rodger | Great Britain | + 1.2″ |
| 21 | Martin Tucek | Czech Republic | + 1.53″ |
| 22 | Aleix Porras | Spain | + 1.59″ |
| 23 | Diogo Mestre | Portugal | + 2.55″ |
| 24 | Hrvoje Cukman | Croatia | + 2.83″ |
| 25 | Andrea Ercolani Volta | San Marino | + 3.76″ |
| David Greene | Great Britain | DNS |