| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 1999 | 
|---|---|---|---|---|---|
| 1 | 1076 | Udeme Ekpeyong |  NGR | 45.26 | 45.56 | 
| 2 | 1160 | Piotr Rysiukiewicz |  POL | 45.65 | 45.65 | 
| 3 | 815 | Michael McDonald |  JAM | 44.64 | 45.13 | 
| 4 | 1498 | Antonio Pettigrew |  USA | 44.27 | |
| 5 | 156 | Anderson Jorge dos Santos |  BRA | 45.39 | 45.39 | 
| 6 | 516 | Jamie Baulch |  GBR | 44.57 | 44.82 | 
| 7 | 1227 | Jopie van Oudtshoorn |  RSA | 44.75 | 44.75 | 
| 8 | 834 | Jun Osakada |  JPN | 45.69 | 45.69 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 1999 | 
|---|---|---|---|---|---|
| 1 | 204 | Shane Niemi |  CAN | 45.52 | 45.52 | 
| 2 | 1074 | Sunday Bada |  NGR | 44.63 | 45.39 | 
| 3 | 1316 | Sugath Thilakaratne |  SRI | 44.61 | 44.84 | 
| 4 | 1141 | Tomasz Czubak |  POL | 45.13 | 45.13 | 
| 5 | 358 | David Canal |  ESP | 45.20 | 45.36 | 
| 6 | 1481 | Michael Johnson |  USA | 43.39 | 43.92 | 
| 7 | 1281 | Ibrahima Wade |  SEN | 45.05 | 45.21 | 
| 8 | 814 | Danny McFarlane |  JAM | 44.90 | 45.37 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 1999 | 
|---|---|---|---|---|---|
| 1 | 862 | Kennedy Ochieng |  KEN | 44.82 | 45.07 | 
| 2 | 465 | Marc Foucan |  FRA | 45.31 | 45.31 | 
| 3 | 993 | Alejandro Manuel Cárdenas |  MEX | 44.92 | 44.92 | 
| 4 | 1513 | Jerome Young |  USA | 44.09 | 44.36 | 
| 5 | 1149 | Robert Mackowiak |  POL | 45.04 | 45.17 | 
| 6 | 533 | Mark Richardson |  GBR | 44.37 | 44.53 | 
| 7 | 1033 | Eric Milazar |  MRI | 45.31 | 45.53 | 
| 8 | 1215 | Arnaud Malherbe |  RSA | 44.59 | 44.59 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 1999 | 
|---|---|---|---|---|---|
| 1 | 1075 | Clement Chukwu |  NGR | 44.65 | 44.79 | 
| 2 | 832 | Masayoshi Kan |  JPN | 45.33 | 46.20 | 
| 3 | 808 | Gregory Haughton |  JAM | 44.56 | 44.59 | 
| 4 | 1454 | Jerome Davis |  USA | 44.91 | 44.91 | 
| 5 | 1558 | Philip Mukomana |  ZIM | 45.63 | 45.63 | 
| 6 | 153 | Sanderlei Parrela |  BRA | 44.70 | 44.70 | 
| 7 | 1187 | Ibrahim Ismail Muftah |  QAT | 44.85 | 45.94 | 
| 8 | 1293 | Matija Å estak |  SLO | 45.47 | 45.47 |