| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | Michael NORMAN |
USA
|
44.40 | |
| 2 | Michael CHERRY |
USA
|
44.86 | |
| 3 | Deon LENDORE |
TTO
|
45.04 | |
| 4 | Emmanuel Kipkurui KORIR |
KEN
|
45.29 | |
| 5 | Wilbert LONDON |
USA
|
45.31 | |
| 6 | Justin ROBINSON |
USA
|
45.38 | |
| 7 | Matthew HUDSON-SMITH |
GBR
|
46.03 | |
| 8 | Chidi OKEZIE |
NGR
|
47.02 |
| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | Machel CEDENIO |
TTO
|
45.47 | |
| 2 | Marcus CHAMBERS |
USA
|
46.39 | |
| 3 | Myles PRINGLE |
USA
|
46.40 | |
| 4 | Tony MCQUAY |
USA
|
46.78 |