| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2024 | 
|---|---|---|---|---|---|
| 2 | GER | Germany U20 | 
                             
                            GER
                         | 
                            43.27 | |
| 3 | SUI | Switzerland U20 | 
                             
                            SUI
                         | 
                            43.70 | |
| 4 | ESP | Spain U20 | 
                             
                            ESP
                         | 
                            44.66 | |
| 5 | CAN | Canada U20 | 
                             
                            CAN
                         | 
                            44.42 | |
| 6 | UKR | Ukraine U20 | 
                             
                            UKR
                         | 
                            44.77 | |
| 7 | GBR | Great Britain & NI U20 | 
                             
                            GBR
                         | 
                            43.78 | |
| 8 | ECU | Ecuador U20 | 
                             
                            ECU
                         | 
                            44.88 | |
| 9 | CHI | Chile U20 | 
                             
                            CHI
                         | 
                            46.06 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2024 | 
|---|---|---|---|---|---|
| 2 | POL | Poland U20 | 
                             
                            POL
                         | 
                            43.79 | |
| 3 | PER | Peru U20 | 
                             
                            PER
                         | 
                            46.90 | |
| 4 | RSA | South Africa U20 | 
                             
                            RSA
                         | 
                            45.05 | |
| 5 | TTO | Trinidad and Tobago U20 | 
                             
                            TTO
                         | 
                            44.14 | |
| 6 | IND | India U20 | 
                             
                            IND
                         | 
                            45.36 | |
| 7 | USA | United States U20 | 
                             
                            USA
                         | 
                            42.88 | |
| 8 | AUS | Australia U20 | 
                             
                            AUS
                         | 
                            44.34 | |
| 9 | HUN | Hungary U20 | 
                             
                            HUN
                         | 
                            45.09 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2024 | 
|---|---|---|---|---|---|
| 2 | NGR | Nigeria U20 | 
                             
                            NGR
                         | 
                            43.44 | |
| 3 | FRA | France U20 | 
                             
                            FRA
                         | 
                            43.68 | |
| 4 | SLO | Slovenia U20 | 
                             
                            SLO
                         | 
                            46.09 | |
| 5 | BRA | Brazil U20 | 
                             
                            BRA
                         | 
                            43.98 | |
| 6 | ITA | Italy U20 | 
                             
                            ITA
                         | 
                            44.42 | |
| 7 | BOT | Botswana U20 | 
                             
                            BOT
                         | 
                            47.58 | |
| 8 | JAM | Jamaica U20 | 
                             
                            JAM
                         | 
                            42.58 | |
| 9 | PUR | Puerto Rico U20 | 
                             
                            PUR
                         | 
                            45.35 |