| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | Jamaica Junior |
JAM
|
44.26 Q WLJ | |
| 2 | Australia Junior |
AUS
|
45.06 Q SB | |
| 3 | United States Junior |
USA
|
45.15 Q | |
| 4 | Poland Junior |
POL
|
45.26 q | |
| 5 | New Zealand Junior |
NZL
|
45.71 SB | |
| 6 | Chile Junior |
CHI
|
46.40 NJR | |
| Great Britain & N.I. Junior |
GBR
|
DQ |
| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | Germany Junior |
GER
|
44.28 Q SB | |
| 2 | France Junior |
FRA
|
44.55 Q SB | |
| 3 | Sweden Junior |
SWE
|
45.08 Q NJR | |
| 4 | Italy Junior |
ITA
|
45.31 q SB | |
| 5 | Venezuela Junior |
VEN
|
46.14 NJR | |
| South Africa Junior |
RSA
|
DNS |