| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2023 | 
|---|---|---|---|---|---|
| 2 | 2362 | Joshua ABUAKU |  GER | 48.32 | 48.32 | 
| 3 | 2968 | Trevor BASSITT |  USA | 47.38 | 47.38 | 
| 4 | 2261 | Rasmus MÄGI |  EST | 47.82 | 48.04 | 
| 5 | 2537 | Roshawn CLARKE |  JAM | 47.34 | 47.34 | 
| 6 | 2971 | Rai BENJAMIN |  USA | 46.17 | 46.62 | 
| 7 | 2742 | Karsten WARHOLM |  NOR | 45.94 | 46.51 | 
| 8 | 2526 | Kyron MCMASTER |  IVB | 47.08 | 47.26 | 
| 9 | 2113 | Alison DOS SANTOS |  BRA | 46.29 | 47.38 |