Heat 10
vendredi 14 décembre 2018, 02h50 GMT – 02h50 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Chad Le Clos | South Africa | 22.67″ |
| 2 |  Takaya Yasue | Japan | + 0.11″ |
| 3 | Ryan Coetzee | South Africa | + 0.12″ |
| 4 |  Yauhen Tsurkin | Belarus | + 0.13″ |
| 5 | Matteo Rivolta | Italy | + 0.35″ |
| 5 | Nikša Stojkovski | Norway | + 0.35″ |
| 7 | Piero Codia | Italy | + 0.36″ |
| 8 |  Deividas Margevicius | Lithuania | + 0.43″ |
| 9 | Andriy Khloptsov | Ukraine | + 1.51″ |
 Caeleb Dressel | United States | DNS |