| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2024 | 
|---|---|---|---|---|---|
| 2 | FRA | France U20 | 
                             
                            FRA
                         | 
                            39.33 | |
| 3 | ESP | Spain U20 | 
                             
                            ESP
                         | 
                            39.42 | |
| 4 | SUI | Switzerland U20 | 
                             
                            SUI
                         | 
                            39.61 | |
| 5 | RSA | South Africa U20 | 
                             
                            RSA
                         | 
                            38.51 | |
| 6 | KOR | Korea U20 | 
                             
                            KOR
                         | 
                            40.32 | |
| 7 | GRN | Grenada U20 | 
                             
                            GRN
                         | 
                            40.71 | |
| 8 | AUS | Australia U20 | 
                             
                            AUS
                         | 
                            39.12 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2024 | 
|---|---|---|---|---|---|
| 2 | CHN | PR of China U20 | 
                             
                            CHN
                         | 
                            39.51 | |
| 3 | SRI | Sri Lanka U20 | 
                             
                            SRI
                         | 
                            39.81 | |
| 4 | ZIM | Zimbabwe U20 | 
                             
                            ZIM
                         | 
                            40.64 | |
| 5 | HKG | Hong Kong, China U20 | 
                             
                            HKG
                         | 
                            39.67 | |
| 6 | BRA | Brazil U20 | 
                             
                            BRA
                         | 
                            39.29 | |
| 7 | FIN | Finland U20 | 
                             
                            FIN
                         | 
                            39.74 | |
| 8 | USA | United States U20 | 
                             
                            USA
                         | 
                            38.62 | |
| 9 | PER | Peru U20 | 
                             
                            PER
                         | 
                            40.96 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2024 | 
|---|---|---|---|---|---|
| 2 | GBR | Great Britain & NI U20 | 
                             
                            GBR
                         | 
                            39.05 | |
| 3 | BUL | Bulgaria U20 | 
                             
                            BUL
                         | 
                            40.56 | |
| 4 | JPN | Japan U20 | 
                             
                            JPN
                         | 
                            39.01 | |
| 5 | GER | Germany U20 | 
                             
                            GER
                         | 
                            39.13 | |
| 6 | CZE | Czechia U20 | 
                             
                            CZE
                         | 
                            39.41 | |
| 7 | CHI | Chile U20 | 
                             
                            CHI
                         | 
                            40.38 | |
| 8 | THA | Thailand U20 | 
                             
                            THA
                         | 
                            39.66 | |
| 9 | CAN | Canada U20 | 
                             
                            CAN
                         | 
                            39.64 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2024 | 
|---|---|---|---|---|---|
| 2 | NGR | Nigeria U20 | 
                             
                            NGR
                         | 
                            39.33 | |
| 3 | DEN | Denmark U20 | 
                             
                            DEN
                         | 
                            40.07 | |
| 4 | MEX | Mexico U20 | 
                             
                            MEX
                         | 
                            40.52 | |
| 5 | POL | Poland U20 | 
                             
                            POL
                         | 
                            38.90 | |
| 6 | ITA | Italy U20 | 
                             
                            ITA
                         | 
                            39.28 | |
| 7 | TTO | Trinidad and Tobago U20 | 
                             
                            TTO
                         | 
                            39.17 | |
| 8 | ECU | Ecuador U20 | 
                             
                            ECU
                         | 
                            40.75 | |
| 9 | JAM | Jamaica U20 | 
                             
                            JAM
                         | 
                            38.61 |