| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | USA | United States Junior |
USA
|
43.46 WJL | 0.171 |
| 2 | JAM | Jamaica Junior |
JAM
|
43.97 SB | 0.199 |
| 3 | GER | Germany Junior |
GER
|
44.65 SB | 0.177 |
| 4 | TTO | Trinidad and Tobago Junior |
TTO
|
44.75 | 0.168 |
| 5 | SUI | Switzerland Junior |
SUI
|
45.02 SB | 0.175 |
| 6 | JPN | Japan Junior |
JPN
|
45.40 | 0.209 |
| BAH | Bahamas Junior |
BAH
|
DQ R170.7 | 0.149 | |
| BRA | Brazil Junior |
BRA
|
DNF | 0.152 |