| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 649 | Thomas SOMERS |  GBR | 20.37 Q PB | 0.188 | 
| 2 | 101 | Zharnel HUGHES |  AIA | 20.38 Q | 0.159 | 
| 3 | 927 | Masaharu Mori |  JPN | 20.71 q PB | 0.170 | 
| 4 | 1438 | Jonathan FARINHA |  TTO | 20.74 q | 0.188 | 
| 5 | 887 | Jevaughn MINZIE |  JAM | 20.77 | 0.194 | 
| 6 | 1566 | Kendal WILLIAMS |  USA | 21.10 | 0.212 | 
| 7 | 270 | Baboloki THEBE |  BOT | 21.28 | 0.207 | 
| 8 | 1327 | Luka JANEŽIČ |  SLO | 21.41 | 0.168 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 889 | Michael O'Hara |  JAM | 20.45 Q PB | 0.248 | 
| 2 | 1115 | Divine ODUDURU |  NGR | 20.66 Q PB | 0.191 | 
| 3 | 752 | Emmanuel Dasor |  GHA | 20.75 PB | 0.192 | 
| 4 | 425 | Reynier MENA |  CUB | 20.81 | 0.145 | 
| 5 | 324 | Andre Ford-Azonwanna |  CAN | 20.90 PB | 0.188 | 
| 6 | 1062 | Iván Moreno |  MEX | 21.37 | 0.170 | 
| 7 | 268 | Karabo MOTHIBI |  BOT | 21.54 | 0.159 | 
| 284 | Vitor Hugo dos Santos |  BRA | DQ R163.3(a) | 0.181 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 1533 | Trentavis Friday |  USA | 20.35 Q | 0.179 | 
| 2 | 926 | Yuki KOIKE |  JPN | 20.66 Q | 0.177 | 
| 3 | 210 | Steven GARDINER |  BAH | 20.89 | 0.166 | 
| 4 | 845 | Jacopo Spanò |  ITA | 20.98 PB | 0.194 | 
| 5 | 473 | Morten Dalgaard Madsen |  DEN | 21.06 NJR | 0.163 | 
| 6 | 115 | Miguel FRANCIS |  ANT | 21.29 | 0.229 | 
| 7 | 1375 | Jakub Matúš |  SVK | 21.33 PB | 0.153 | 
| 1655 | Michael Songore |  ZIM | DNS |