| 1 | 1 | 3 | 921 | Nobuya Kato |  JPN | 46.23
                    
                    
                        Q | 
            
                | 2 | 1 | 5 | 1525 | Tyler Brown |  USA | 46.45
                    
                    
                        Q | 
            
                | 3 | 2 | 5 | 644 | Jack Crosby |  GBR | 46.48
                    
                    
                        Q
                    
                    
                        PB | 
            
                | 4 | 1 | 6 | 1436 | Machel CEDENIO |  TTO | 46.60
                    
                    
                        Q | 
            
                | 5 | 2 | 3 | 1526 | Lamar Bruton-Grinnage |  USA | 46.74
                    
                    
                        Q | 
            
                | 6 | 1 | 7 | 1260 | Berend KOEKEMOER |  RSA | 46.89
                    
                    
                        Q | 
            
                | 7 | 1 | 1 | 981 | Alexander Lerionka Sampao |  KEN | 46.91
                    
                    
                        Q | 
            
                | 8 | 1 | 4 | 301 | Abbas Abubakar ABBAS |  BRN | 46.92
                    
                    
                        Q | 
            
                | 9 | 2 | 6 | 482 | Juander SANTOS |  DOM | 47.02
                    
                    
                        Q | 
            
                | 10 | 1 | 2 | 922 | Kaisei Yui |  JPN | 47.06
                    
                    
                        Q | 
            
                | 11 | 3 | 6 | 209 | Henri Delauze |  BAH | 47.07
                    
                    
                        Q | 
            
                | 11 | 3 | 5 | 132 | Sam Reiser |  AUS | 47.07
                    
                    
                        Q | 
            
                | 13 | 4 | 5 | 206 | Janeko Cartwright |  BAH | 47.10
                    
                    
                        q | 
            
                | 14 | 2 | 7 | 1462 | Batuhan ALTINTAÅž |  TUR | 47.15
                    
                    
                        Q | 
            
                | 15 | 3 | 3 | 1502 | Oleksiy Pozdnyakov |  UKR | 47.18
                    
                    
                        Q
                    
                    
                        PB | 
            
                | 16 | 2 | 4 | 884 | Martin Manley |  JAM | 47.20
                    
                    
                        Q | 
            
                | 17 | 2 | 1 | 359 | Jamal Walton |  CAY | 47.22
                    
                    
                        Q | 
            
                | 18 | 3 | 4 | 1327 | Luka JANEŽIČ |  SLO | 47.30
                    
                    
                        Q | 
            
                | 19 | 3 | 7 | 1323 | Warren Hazel |  SKN | 47.37
                    
                    
                        Q | 
            
                | 20 | 4 | 3 | 319 | Joshua Cunningham |  CAN | 47.40
                    
                    
                        q | 
            
                | 21 | 3 | 1 | 129 | Joshua Robinson |  AUS | 47.47
                    
                    
                        Q | 
            
                | 22 | 4 | 1 | 652 | Elliot Rutter |  GBR | 47.55
                    
                    
                        q | 
            
                | 23 | 4 | 4 | 779 | Bálint Móricz |  HUN | 47.66 | 
            
                | 24 | 5 | 5 | 1181 | Wiktor SUWARA |  POL | 47.71 | 
            
                | 25 | 4 | 6 | 1111 | Samson Oghenewegba NATHANIEL |  NGR | 47.77 | 
            
                | 26 | 5 | 3 | 271 | Leungo SCOTCH |  BOT | 47.81 | 
            
                | 27 | 4 | 7 | 1007 | Mazen Mawtan AL YASEN |  KSA | 47.85 | 
            
                | 28 | 6 | 5 | 970 | Raymond Kibet |  KEN | 47.91 | 
            
                | 29 | 5 | 1 | 583 | Batinisavu Uluiyata |  FIJ | 47.95 | 
            
                | 30 | 2 | 2 | 273 | Karabo SIBANDA |  BOT | 47.96
                    
                    
                        Q | 
            
                | 31 | 5 | 6 | 1477 | Abdullah Tütünci |  TUR | 48.00 | 
            
                | 32 | 6 | 6 | 410 | Mateo Kovacic |  CRO | 48.03 | 
            
                | 32 | 5 | 4 | 806 | Sina Rohani |  IRI | 48.03 | 
            
                | 34 | 3 | 2 | 879 | Nathon ALLEN |  JAM | 48.06
                    
                    
                        Q | 
            
                | 35 | 5 | 7 | 474 | Benjamin Lobo VEDEL |  DEN | 48.13 | 
            
                | 36 | 4 | 2 | 1269 | Sonwabiso Skhosana |  RSA | 48.16 | 
            
                | 37 | 6 | 3 | 1649 | Brandon Parris |  VIN | 48.36
                    
                    
                        
                    
                    
                        NJR | 
            
                | 38 | 5 | 2 | 1431 | Wei-Hsu Wang |  TPE | 48.61 | 
            
                | 39 | 7 | 5 | 1651 | Shaddy Melu |  ZAM | 48.74 | 
            
                | 40 | 6 | 2 | 320 | Graeme Thompson |  CAN | 49.01 | 
            
                | 41 | 6 | 1 | 1439 | Asa GUEVARA |  TTO | 49.48 | 
            
                | 42 | 6 | 4 | 253 | Kyle Webb |  BER | 49.79 | 
            
                | 43 | 6 | 7 | 480 | Derick St Jean |  DMA | 50.32 | 
            
                | 44 | 7 | 1 | 1412 | Vitsanu Phosri |  THA | 50.40 | 
            
                | 45 | 7 | 2 | 1051 | Hussain Riza |  MDV | 52.42
                    
                    
                        
                    
                    
                        PB | 
            
                | 46 | 7 | 7 | 755 | Karl Baldachino |  GIB | 54.56
                    
                    
                        
                    
                    
                        PB | 
            
                | 47 | 7 | 3 | 1317 | Luatimu Samau |  SAM | 56.71 | 
            
                |  |  | 7 | 1109 | Adekunle Rilwan Fasasi |  NGR | DQ R163.3(a) | 
            
                |  |  | 6 | 1234 | Mohamed Nasir ABBAS |  QAT | DQ R163.3(a) | 
            
                |  |  | 4 | 964 | Mikhail LITVIN |  KAZ | DQ R163.3(a) | 
            
                |  |  | 3 | 393 | Rosel Lusanga Kafwa |  COD | DNS | 
            
                |  |  | 2 | 360 | Bachir MAHAMAT |  CHA | DNS |