| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 12 | Matthew Bouveng |  AUS | 21.67 Q | |
| 2 | 274 | Winston Smith |  JAM | 21.71 Q | |
| 3 | 283 | Yusuke Omae |  JPN | 21.73 | |
| 4 | 374 | Taiwo Ajibade |  NGR | 21.86 | |
| 5 | 378 | David Falealili |  NZL | 21.90 | |
| 6 | 120 | Jirà KmÃnek |  CZE | 22.07 | |
| 7 | 91 | He Jun |  CHN | 22.10 | |
| 299 | Japheth Ogamba |  KEN | DNS | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 584 | Bryan Sears |  USA | 21.26 Q | |
| 2 | 99 | Jacner Palacios |  COL | 21.55 Q | |
| 3 | 259 | Tal Mor |  ISR | 21.66 q | |
| 4 | 107 | José Carlos Peña |  CUB | 21.75 | |
| 5 | 214 | Keith Roberts |  GUY | 21.98 | |
| 6 | 102 | Igor Blazevic |  CRO | 22.13 | |
| 7 | 475 | Warren October |  RSA | 22.16 | |
| 8 | 602 | Mario Trillo |  MEX | 22.30 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 170 | Timothy Benjamin |  GBR | 20.98 Q | |
| 2 | 269 | Omar Brown |  JAM | 21.36 Q | |
| 3 | 316 | Salem Mubarak Al-Yami |  KSA | 21.45 q | |
| 4 | 284 | Yoshitaka Kaneko |  JPN | 21.77 | |
| 5 | 162 | Emmanuel Djekery |  FRA | 21.90 | |
| 6 | 30 | Wilan Louis |  BAR | 22.12 | |
| 7 | 574 | Duriel Laird |  USA | 22.24 | |
| 8 | 295 | Julius Kering |  KEN | 22.30 |