| POS | BIB | Team | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | USA | United States |
USA
|
42.29 Q CR | 0.171 |
| 2 | TTO | Trinidad and Tobago |
TTO
|
42.59 Q SB | 0.188 |
| 3 | GER | Germany |
GER
|
42.92 q SB | 0.175 |
| 4 | SUI | Switzerland |
SUI
|
43.41 SB | 0.184 |
| 5 | DOM | Dominican Republic |
DOM
|
44.30 SB | 0.143 |
| 6 | AUS | Australia |
AUS
|
44.69 | 0.151 |
| Split | Mark | Athlete | COUNTRY |
|---|---|---|---|
| 300m | 31.80 |
United States
|
USA
|
| POS | BIB | Team | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | JAM | Jamaica |
JAM
|
42.29 Q CR | 0.182 |
| 2 | NGR | Nigeria |
NGR
|
42.77 Q SB | 0.155 |
| 3 | BRA | Brazil |
BRA
|
43.22 q SB | 0.195 |
| 4 | CAN | Canada |
CAN
|
43.69 SB | 0.206 |
| 5 | CHN | PR of China |
CHN
|
44.12 SB | 0.149 |
| 6 | IVB | British Virgin Islands |
IVB
|
44.53 SB | 0.186 |
| 7 | VEN | Venezuela |
VEN
|
44.64 SB | 0.236 |
| Split | Mark | Athlete | COUNTRY |
|---|---|---|---|
| 300m | 32.00 |
Jamaica
|
JAM
|
| POS | BIB | Team | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | GBR | Great Britain & NI |
GBR
|
43.20 Q | 0.154 |
| 2 | FRA | France |
FRA
|
43.35 Q SB | 0.191 |
| 3 | BAH | Bahamas |
BAH
|
43.54 SB | 0.152 |
| 4 | PUR | Puerto Rico |
PUR
|
44.04 SB | 0.182 |
| 5 | POL | Poland |
POL
|
44.07 SB | 0.210 |
| 6 | JPN | Japan |
JPN
|
44.66 | 0.148 |
| Split | Mark | Athlete | COUNTRY |
|---|---|---|---|
| 300m | 32.80 |
Great Britain & N.I.
|
GBR
|