Heat 6
samedi 22 mai 2021, 08h15 GMT – 08h15 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Florent Manaudou | France | 21.86″ |
| 2 |  Ari-Pekka Liukkonen | Finland | + 0.13″ |
| 3 |  Leonardo Deplano | Italy | + 0.24″ |
| 4 | Kenzo Simons | Netherlands | + 0.27″ |
| 5 | Andriy Govorov | Ukraine | + 0.33″ |
| 6 | Heiko Gigler | Austria | + 0.41″ |
| 7 |  Jesse Puts | Netherlands | + 0.42″ |
| 8 | Jacob Whittle | Great Britain | + 0.79″ |