| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | Osiris MartÃnez |
CUB
|
50.45 Q PB | 0.022 |
| 2 | Chin-Fu Lin |
TPE
|
50.47 Q NR | 0.017 |
| 3 | Terrance Wilson |
USA
|
51.10 Q | 0.017 |
| 4 | Francois Coetzee |
RSA
|
51.35 q | 0.012 |
| 5 | Tomasz Rudnik |
POL
|
51.47 q PB | 0.023 |
| 6 | Tahar Ghozali |
ALG
|
52.12 NR | 0.020 |
| 7 | Richard McDonald |
GBR
|
52.13 PB | 0.018 |
| 8 | David Lloyd |
JAM
|
52.15 | 0.014 |
| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | Peter Bate |
AUS
|
50.50 Q PB | 0.023 |
| 2 | PeriklÃs Iakovákis |
GRE
|
50.73 Q | 0.026 |
| 3 | Chabib El Azouizi |
MAR
|
51.11 Q NR | 0.019 |
| 4 | Satoshi Oshikawa |
JPN
|
51.55 PB | 0.021 |
| 5 | Reginald DePass |
USA
|
51.89 | 0.025 |
| 6 | Carlos Garcia |
ESP
|
52.03 | 0.024 |
| 7 | Nicholas O'Brien |
NZL
|
52.04 PB | 0.023 |
| 8 | Stefano Cuzzi |
ITA
|
52.71 | 0.026 |