Final
|
| 1 | GARDINER Steven | BAH | 43.85 |
| 2 | ZAMBRANO Anthony Jose | COL | 44.08 |
| 3 | JAMES Kirani | GRN | 44.19 |
| 4 | CHERRY Michael | USA | 44.21 |
| 5 | NORMAN Michael | USA | 44.31 |
| 6 | TAYLOR Christopher | JAM | 44.79 |
| 7 | MAKWALA Isaac | BOT | 44.94 |
| 8 | BONEVACIA Liemarvin | NED | 45.07 |
Semi-Final One
|
| 1 | JAMES Kirani | GRN | 43.88 | Q |
| 2 | ZAMBRANO Anthony Jose | COL | 43.93 | Q |
| 3 | BONEVACIA Liemarvin | NED | 44.62 | q |
| 4 | LENDORE Deon | TTO | 44.93 | |
| 5 | RE Davide | ITA | 44.94 | |
| 6 | JANEZIC Luka | SLO | 45.26 | |
| 7 | SACOOR Jonathan | BEL | 45.36 | |
| 8 | PETRUCCIANI Ricky | SUI | 45.88 | |
Semi-Final Two
|
| 1 | CHERRY Michael | USA | 44.44 | Q |
| 2 | TAYLOR Christopher | JAM | 44.92 | Q |
| 3 | SOLOMON Steven | AUS | 45.15 | |
| 4 | AL YASSIN Mazen Moutan | KSA | 45.37 | |
| 5 | SCOTCH Leungo | BOT | 45.56 | |
| 6 | CEDENIO Machel | TTO | 45.86 | |
| 7 | RUSSELL Alonzo | BAH | 46.04 | |
Semi-Final Three
|
| 1 | GARDINER Steven | BAH | 44.14 | Q |
| 2 | NORMAN Michael | USA | 44.52 | Q |
| 3 | MAKWALA Isaac | BOT | 44.59 | q |
| 4 | GAYE Demish | JAM | 45.09 | |
| 5 | VAN NIEKERK Wayde | RSA | 45.14 | |
| 6 | DOBBER Jochem | NED | 45.48 | |
| 7 | ST HILLAIRE Dwight | TTO | 45.58 | |
| 8 | JONES Jonathan | BAR | 45.61 | |
Heat one
|
| 1 | MAKWALA Isaac | BOT | 44.86 | Q |
| 2 | JAMES Kirani | GRN | 45.09 | Q |
| 3 | SACOOR Jonathan | BEL | 45.41 | Q |
| 4 | GAYE Demish | JAM | 45.49 | q |
| 5 | RUSSELL Alonzo | BAH | 45.51 | q |
| 6 | BECK Alex | AUS | 45.54 | |
| 7 | DOS SANTOS Ricardo | POR | 46.83 | |
| 8 | MAHAMAT Bachir | CHA | 47.93 | |
Heat two
|
| 1 | AL YASSIN Mazen Moutan | KSA | 45.16 | Q |
| 2 | BORLEE Kevin | BEL | 45.36 | Q |
| 3 | PETRUCCIANI Ricky | SUI | 45.64 | Q |
| 4 | ROSS Randolph | USA | 45.67 | |
| 5 | NENE Zakithi | SA | 45.74 | |
| 6 | PERLAZA Jhon Alejandro | COL | 46.55 | |
| 7 | MASLAK Pavel | CZE | 47.01 | |
| 8 | AL YAARI Ahmed | YEM | 48.53 | |
Heat three
|
| 1 | CHERRY Michael | USA | 44.82 | Q |
| 2 | JONES Jonathan | BAR | 45.04 | Q |
| 3 | TAYLOR Christopher | JAM | 45.20 | Q |
| 4 | ST. HILLAIRE Dwight | TTO | 45.41 | q |
| 5 | JANEZIC Luka | SLO | 45.44 | q |
| 6 | AFOUMBA Gilles Anthony | CGO | 46.03 | |
| 7 | CARVALHO Lucas | BRA | 46.12 | |
| 8 | RAYHAN Mohammad Jahir | BAN | 48.29 | |
Heat four
|
| 1 | ZAMBRANO Anthony Jose | COL | 44.87 | Q |
| 2 | SOLOMON Steven | AUS | 44.94 | Q |
| 3 | VAN NIEKERK Wayde | SA | 45.25 | Q |
| 4 | SCOTCH Leungo | BOT | 45.32 | q |
| 5 | RE Davide | ITA | 45.46 | q |
| 6 | WALSH Julian Jrummi | JPN | 46.57 | |
| 7 | STOJOSKI Jovan | MKD | 46.81 | |
| KORIR Emmanuel Kipkurui | KEN | DQ | |
Heat five
|
| 1 | GARDINER Steven | BAH | 45.05 | Q |
| 2 | LENDORE Deon | TTO | 45.14 | Q |
| 3 | DOBBER Jochem | NED | 45.54 | Q |
| 4 | ALLEN Nathon | JAM | 46.12 | q |
| 5 | KOUMI EL NOUR Sadam Suliman | SUD | 46.26 | |
| 6 | SCHLEGEL Marvin | GER | 46.39 | |
| 7 | LITVIN Mikhail | KAZ | 47.15 | |
| 8 | ZALEWSKI Karol | POL | 2:15.38 | |
Heat six
|
| 1 | BONEVACIA Liemarvin | NED | 44.95 | Q |
| 2 | NORMAN Michael | USA | 45.35 | Q |
| 3 | CEDENIO Machel | TTO | 45.56 | Q |
| 4 | SCOTTI Edoardo | ITA | 45.71 | |
| 5 | PHORA Thapelo | SA | 45.83 | |
| 6 | YASEEN Taha Hussein | IRQ | 46.00 | |
| 7 | HUSILLOS Oscar | SPA | 48.05 | |
| 8 | RABEARISON Todisoa Franck | MAD | 48.40 | |
DQ = Disqualified
Q = qualified automatically
q = qualified as fastest loser
