| Lane | # | Name/Club | Nat | PB | SB | |
|---|---|---|---|---|---|---|
| 1 | 1 | Nicolai Trock Hartling Denmark |  DEN | 50,01 | 52,36 | |
| 2 | 2 | Chris McAlister Great Britain & NI |  GBR | 49,18 | 50,54 | |
| 3 | 3 | Sokwakhana Zazini South Africa |  RSA | 48,73 | 50,13 | |
| 4 | 4 | Thomas Barr Ireland |  IRL | 47,97 | 49,02 | |
| 5 | 5 | Rasmus Mägi Estonia |  EST | 48,40 | 48,87 | |
| 6 | 6 | Oskari Mörö Esbo IF |  FIN | 49,04 | ||
| 7 | 7 | Nick Smidt Netherlands |  NED | 49,28 | 49,43 | |
| 8 | 8 | Tuomas Lehtonen Liedon Parma | FIN | 50,53 |
| Events and timetable | Results |
M 400 m hurdles
7.6.2021 21.50 |
| Heat 1 |
Results by:
