| Lane | Bib | Name | Country | SB | PB |
|---|---|---|---|---|---|
| 1 | 128 | NGUNJIRI Edward | KEN | 53.21 | 50.45 |
| 2 | 123 | ROTICH Kipkorir | KEN | 51.14 | – |
| 3 | 124 | GIKONYO John | KEN | 51.73 | – |
| 4 | 122 | MBEVI William | KEN | 50.37 | – |
| 5 | 121 | WERE Wiseman | KEN | 49.48 | – |
| 6 | 125 | KIPNGETICH Newton | KEN | 52.05 | 51.33 |
| 7 | 126 | KIPLIMO Nicholas | KEN | 52.26 | – |
| 8 | 127 | KOSGEI Vincent | KEN | 52.46 | – |
