| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | JPN | Japan Junior |
JPN
|
39.01 Q WJL | 0.184 |
| 2 | BRA | Brazil Junior |
BRA
|
39.29 Q AJ | 0.166 |
| 3 | POL | Poland Junior |
POL
|
39.31 q NJ | 0.160 |
| 4 | AUS | Australia Junior |
AUS
|
39.34 q AJ | 0.171 |
| 5 | THA | Thailand Junior |
THA
|
39.68 SB | 0.194 |
| 6 | NGR | Nigeria Junior |
NGR
|
39.86 SB | 0.177 |
| 7 | RSA | South Africa Junior |
RSA
|
39.87 SB | 0.161 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | USA | United States Junior |
USA
|
39.25 Q SB | 0.163 |
| 2 | BAH | Bahamas Junior |
BAH
|
39.48 Q NJ | 0.196 |
| 3 | TRI | Trinidad and Tobago Junior |
TTO
|
40.01 | 0.166 |
| 4 | GER | Germany Junior |
GER
|
40.08 SB | 0.135 |
| 5 | ITA | Italy Junior |
ITA
|
40.41 SB | 0.150 |
| 6 | DEN | Denmark Junior |
DEN
|
40.60 NJ | 0.179 |
| FIN | Finland Junior |
FIN
|
DQ | 0.189 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | GBR | Great Britain & N.I. Junior |
GBR
|
39.09 Q SB | 0.140 |
| 2 | JAM | Jamaica Junior |
JAM
|
39.19 Q SB | 0.203 |
| 3 | CAN | Canada Junior |
CAN
|
40.58 SB | 0.157 |
| 4 | ESP | Spain Junior |
ESP
|
41.08 SB | 0.163 |
| 5 | BRN | Bahrain Junior |
BRN
|
41.09 | 0.156 |
| FRA | France Junior |
FRA
|
DQ | 0.176 | |
| SUI | Switzerland Junior |
SUI
|
DQ | 0.176 | |
| CZE | Czech Republic Junior |
CZE
|
DNF | 0.164 |