Heat 3
jeudi 13 décembre 2018, 02h56 GMT – 02h56 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Kliment Kolesnikov | Russia | 23.16″ |
| 2 | Robert Glinta | Romania | + 0.22″ |
| 3 | Matt Grevers | United States | + 0.23″ |
| 4 | Viktar Staselovich | Belarus | + 0.63″ |
| 5 | Catalin Ungur | Romania | + 0.75″ |
| 6 | Thierry Bollin | Switzerland | + 0.9″ |
| 7 | Hugo González | Spain | + 0.94″ |
| 8 | Andrew Jeffcoat | New Zealand | + 1.01″ |
| 9 | Tomáš Franta | Czech Republic | + 1.02″ |
| 10 | Hou Chi Chang | Chinese Taipei | + 2.69″ |