| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 3090 | LaShawn Merritt |  USA | 19.94 Q | 0.166 | 
| 2 | 2427 | Christophe LEMAITRE |  FRA | 20.01 Q SB | 0.125 | 
| 3 | 2474 | Daniel Talbot |  GBR | 20.25 PB | 0.153 | 
| 4 | 2608 | Nickel Ashmeade |  JAM | 20.31 | 0.134 | 
| 5 | 2986 | Rondel Sorrillo |  TTO | 20.33 | 0.132 | 
| 6 | 2262 | Nery Brenes |  CRC | 20.33 | 0.165 | 
| 7 | 2192 | Aaron BROWN |  CAN | 20.37 | 0.173 | 
| 8 | 2759 | José Carlos Herrera |  MEX | 20.48 | 0.150 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 2612 | Usain BOLT |  JAM | 19.78 Q SB | 0.156 | 
| 2 | 2196 | Andre DE GRASSE |  CAN | 19.80 Q NR | 0.130 | 
| 3 | 2454 | Adam GEMILI |  GBR | 20.08 q | 0.142 | 
| 4 | 3001 | Ramil GULIYEV |  TUR | 20.09 q SB | 0.157 | 
| 5 | 2178 | Salem Eid Yaqoob |  BRN | 20.43 | 0.192 | 
| 6 | 3104 | Ameer WEBB |  USA | 20.43 | 0.143 | 
| 7 | 2796 | Divine ODUDURU |  NGR | 20.59 | 0.147 | 
| 8 | 2288 | Roberto SKYERS |  CUB | 20.60 | 0.156 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 2818 | Alonso EDWARD |  PAN | 20.07 Q | 0.140 | 
| 2 | 2785 | Churandy MARTINA |  NED | 20.10 Q SB | 0.147 | 
| 3 | 3069 | Justin GATLIN |  USA | 20.13 | 0.137 | 
| 4 | 2361 | Bruno HORTELANO-ROIG |  ESP | 20.16 | 0.142 | 
| 5 | 2466 | Nethaneel MITCHELL-BLAKE |  GBR | 20.25 | 0.196 | 
| 6 | 2611 | Yohan BLAKE |  JAM | 20.37 | 0.151 | 
| 7 | 2537 | Likoúrgos-Stéfanos Tsákonas |  GRE | 20.63 | 0.159 | 
| 8 | 2600 | Matteo GALVAN |  ITA | 20.88 | 0.149 |