| Order / Lane | ATHLETE | COUNTRY | PB | SB 1997 | 
|---|---|---|---|---|
| 1 | Mathias Rusterholz |  SUI | 44.99 | 45.76 | 
| 2 | Ju-il Shon |  KOR | 45.37 | 47.47 | 
| 3 | Antonio Pettigrew |  USA | 44.27 | |
| 4 | Iwan Thomas |  GBR | 44.36 | 44.36 | 
| 5 | Štefan Balošák |  SVK | 45.32 | 45.38 | 
| 6 | Roxbert Martin |  JAM | 44.49 | 44.49 | 
| 7 | Alejandro Manuel Cárdenas |  MEX | 45.05 | 46.26 | 
| 8 | Robert Mackowiak |  POL | 45.94i | 45.94i | 
| Order / Lane | ATHLETE | COUNTRY | PB | SB 1997 | 
|---|---|---|---|---|
| 1 | Jean-Louis Rapnouil |  FRA | 45.63 | 45.85 | 
| 2 | Benjamin Youla |  CGO | 46.62 | 46.62 | 
| 3 | Davis Kamoga |  UGA | 44.46 | 45.05 | 
| 4 | Michael Johnson |  USA | 43.39 | 43.75 | 
| 5 | Eswort Coombs |  VIN | 45.19 | 45.19 | 
| 6 | Jamie Baulch |  GBR | 44.57 | 45.21 | 
| 7 | Ibrahima Wade |  SEN | 45.61 | 45.61 | 
| 8 | Tawanda Chiwira |  ZIM | 45.38 | 46.09 | 
| Order / Lane | ATHLETE | COUNTRY | PB | SB 1997 | 
|---|---|---|---|---|
| 1 | Kennedy Ochieng |  KEN | 44.82 | 45.88 | 
| 2 | Marco Vaccari |  ITA | 45.47 | 45.74 | 
| 3 | Tyree Washington |  USA | 44.64 | 44.64 | 
| 4 | Sanderlei Parrela |  BRA | 44.96 | 44.96 | 
| 5 | Sugath Thilakaratne |  SRI | 45.58 | 45.58 | 
| 6 | Davian Clarke |  JAM | 44.87 | 45.01 | 
| 7 | Hachim Ndiaye |  SEN | 45.84 | 45.84 | 
| 8 | Clement Chukwu |  NGR | 45.18 | 45.95i | 
| Order / Lane | ATHLETE | COUNTRY | PB | SB 1997 | 
|---|---|---|---|---|
| 1 | Tomasz Czubak |  POL | 45.82 | 45.82 | 
| 2 | Samir-Adel Louahla |  ALG | 46.22 | 46.22 | 
| 3 | Michael McDonald |  JAM | 44.64 | 44.65 | 
| 4 | Mark Richardson |  GBR | 44.52 | 44.70 | 
| 5 | Sunday Bada |  NGR | 44.63 | 45.45 | 
| 6 | Jerome Young |  USA | 44.96 | 45.34 | 
| 7 | Ibrahim Ismail Muftah |  QAT | 44.85 | 45.88 | 
| 8 | Arnaud Malherbe |  RSA | 45.26 | 45.26 |