| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS | WIND | 
|---|---|---|---|---|---|---|---|
| 1 | 1 | 4 | 769 | Clarence MUNYAI |  RSA | 20.40 Q | -1.2 | 
| 2 | 1 | 3 | 762 | Gift LEOTLELA |  RSA | 20.63 Q | +1.6 | 
| 3 | 2 | 3 | 412 | Roger Gurski |  GER | 20.73 Q PB | +1.6 | 
| 4 | 1 | 5 | 907 | Michael NORMAN |  USA | 20.74 Q | +1.3 | 
| 5 | 2 | 4 | 383 | Cameron Tindle |  GBR | 20.78 Q PB | -1.2 | 
| 6 | 1 | 2 | 372 | Ryan Gorman |  GBR | 20.84 Q PB | +0.9 | 
| 7 | 3 | 3 | 825 | Akanni HISLOP |  TTO | 20.87 Q PB | +1.6 | 
| 8 | 2 | 2 | 537 | Nigel ELLIS |  JAM | 20.87 Q | +0.9 | 
| 9 | 3 | 4 | 573 | Jun YAMASHITA |  JPN | 20.89 Q PB | -1.2 | 
| 10 | 4 | 4 | 681 | Mathias Hove JOHANSEN |  NOR | 21.00 Q PB | -1.2 | 
| 11 | 1 | 1 | 584 | Vladislav Grigoryev |  KAZ | 21.02 Q | +1.3 | 
| 12 | 2 | 1 | 819 | Chun-Han YANG |  TPE | 21.11 Q | +1.3 | 
| 13 | 5 | 4 | 806 | Marcus Tornée |  SWE | 21.19 q PB | -1.2 | 
| 14 | 3 | 1 | 891 | Micaiah HARRIS |  USA | 21.19 Q | +1.3 | 
| 15 | 3 | 2 | 666 | Emmanuel Arowolo |  NGR | 21.20 Q | +0.9 | 
| 16 | 2 | 5 | 108 | Coull Graham |  ANT | 21.31 Q | +1.3 | 
| 17 | 3 | 5 | 686 | Hamish Gill |  NZL | 21.33 Q | +1.3 | 
| 18 | 4 | 2 | 140 | Samson COLEBROOKE |  BAH | 21.35 Q | +0.9 | 
| 19 | 5 | 2 | 603 | Seunghwan KO |  KOR | 21.35 q | +0.9 | 
| 20 | 6 | 4 | 113 | Trae Williams |  AUS | 21.40 q | -1.2 | 
| 21 | 4 | 1 | 566 | Wataru Inuzuka |  JPN | 21.41 Q | +1.3 | 
| 22 | 4 | 5 | 184 | Vinicius Moraes |  BRA | 21.46 Q | +1.3 | 
| 23 | 5 | 1 | 599 | Moffat Ngari Wanjiru |  KEN | 21.47 q | +1.3 | 
| 24 | 6 | 2 | 191 | Musa ISAH |  BRN | 21.53 | +0.9 | 
| 25 | 4 | 3 | 177 | Xholani Talane |  BOT | 21.64 Q | +1.6 | 
| 26 | 5 | 5 | 453 | Dániel SZABÓ |  HUN | 21.78 | +1.3 | 
| 27 | 6 | 1 | 604 | Gyuhyeong Lee |  KOR | 21.84 | +1.3 | 
| 28 | 5 | 3 | 745 | Ezequiel Suárez |  PUR | 21.93 | +1.6 | 
| 29 | 7 | 4 | 151 | Kentoine Browne |  BAR | 22.00 | -1.2 | 
| 30 | 7 | 2 | 929 | Tikie Terry Mael |  VAN | 22.06 NU20R | +0.9 | 
| 31 | 7 | 1 | 630 | Mahmoud El Daou |  LBN | 22.39 | +1.3 | 
| 32 | 8 | 1 | 429 | Jessy FRANCO |  GIB | 22.44 | +1.3 | 
| 33 | 6 | 3 | 393 | Pascual Ochaga |  GEQ | 24.70 PB | +1.6 | 
| 5 | 350 | Loïc PREVOT |  FRA | DNF | |||
| 3 | 536 | Hujaye Cornwall |  JAM | DQ R163.3(a) | |||
| 3 | 836 | Mohamed Fares JLASSI |  TUN | DNS | |||
| 5 | 147 | Mario BURKE |  BAR | DNS | |||
| 2 | 694 | Arturo Deliser |  PAN | DNS |