Semifinal 1
mercredi 8 août 2018, 18h04 GMT – 18h04 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Benjamin Proud | Great Britain | 21.11″ |
| 2 |  Pawel Juraszek | Poland | + 0.56″ |
| 3 | Andriy Govorov | Ukraine | + 0.93″ |
| 3 |  Simonas Bilis | Lithuania | + 0.93″ |
| 5 | Bruno Blaškovic | Croatia | + 0.95″ |
| 5 |  Luca Dotto | Italy | + 0.95″ |
| 7 | Thomas Fannon | Great Britain | + 1.03″ |
| 8 | Yonel Govindin | France | + 1.07″ |