Semifinal
mardi 7 août 2018, 19h30 GMT – 19h37 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Jimmy Vicaut | FFA - France Athlétisme | 9.97″ |
| 2 |  Zharnel Hughes | Great Britain | + 0.04″ |
| 3 |  Jak Ali Harvey | Turkey | + 0.12″ |
| 4 |  Reece Prescod | Great Britain | + 0.13″ |
| 5 |  Filippo Tortu | Italy | + 0.15″ |
| 6 |  Chijindu Ujah | Great Britain | + 0.17″ |
| 7 |  Churandy Martina | Netherlands | + 0.21″ |
| 8 | Emre Zafer Barnes | Turkey | + 0.24″ |
| 9 | Yazaldes Nascimento | Portugal | + 0.25″ |
| 10 |  Alex Wilson | Switzerland | + 0.25″ |
| 11 | Lamont Marcell Jacobs | Italy | + 0.31″ |
| 12 | Dominik Kopec | Poland | + 0.32″ |
| 13 | Jan Volko | Slovakia | + 0.34″ |
| 14 | Carlos Nascimento | Portugal | + 0.34″ |
| 15 | Christopher Garia | Netherlands | + 0.34″ |
| 16 |  Lucas Jakubczyk | Germany | + 0.35″ |
| 17 | Zdenek Stromšík | Czech Republic | + 0.4″ |
| 18 | Julian Reus | Germany | + 0.4″ |
| 19 | Hensley Paulina | Netherlands | + 0.41″ |
| 20 | Federico Cattaneo | Italy | + 0.42″ |
| 21 | José Lopes | Portugal | + 0.43″ |
| 22 | Jonathan Quarcoo | Norway | + 0.48″ |
| 23 | Silvan Wicki | Switzerland | + 0.52″ |
| 24 |  Amaury Golitin | FFA - France Athlétisme | + 0.58″ |