| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | USA | United States Junior |
USA
|
43.95 Q WJL | 0.179 |
| 2 | NED | Netherlands Junior |
NED
|
44.68 Q SB | 0.175 |
| AUS | Australia Junior |
AUS
|
DQ | 0.168 | |
| BAH | Bahamas Junior |
BAH
|
DNF | 0.180 | |
| SLO | Slovenia Junior |
SLO
|
DNF | 0.144 | |
| CHN | PR of China Junior |
CHN
|
DNS | 0.000 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | GBR | Great Britain & N.I. Junior |
GBR
|
44.47 Q SB | 0.179 |
| 2 | BRA | Brazil Junior |
BRA
|
44.79 Q SB | 0.201 |
| 3 | BEL | Belgium Junior |
BEL
|
44.88 q NJ | 0.228 |
| ESP | Spain Junior |
ESP
|
DQ | 0.172 | |
| CAN | Canada Junior |
CAN
|
DQ | 0.153 | |
| JAM | Jamaica Junior |
JAM
|
DNF | 0.191 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | GER | Germany Junior |
GER
|
44.27 Q SB | 0.169 |
| 2 | NGR | Nigeria Junior |
NGR
|
44.58 Q SB | 0.155 |
| 3 | POL | Poland Junior |
POL
|
45.02 q SB | 0.218 |
| 4 | ITA | Italy Junior |
ITA
|
45.15 SB | 0.160 |
| 5 | SUI | Switzerland Junior |
SUI
|
45.61 | 0.153 |
| RSA | South Africa Junior |
RSA
|
DQ | 0.188 |