| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2026 |
|---|---|---|---|---|---|
| 1 | POL | Poland U20 |
POL
|
42.18 | 42.18 |
| 2 | GER | Germany U20 |
GER
|
42.12 | 42.12 |
| 3 | JAM | Jamaica U20 |
JAM
|
42.08 | 42.08 |
| 4 | ITA | Italy U20 |
ITA
|
41.74 | 41.74 |
| 5 | USA | United States U20 |
USA
|
41.82 | |
| 6 | GBR | Great Britain & NI U20 |
GBR
|
41.60 | 41.60 |
| 7 | AUS | Australia U20 |
AUS
|
41.64 | 41.64 |
| 8 | NGR | Nigeria U20 |
NGR
|
41.91 | 41.91 |
| 9 | FRA | France U20 |
FRA
|
42.16 | 42.16 |