In the final event of the championships, it was not the hosts Kenya, or indeed the sprint superpowers Jamaica or South Africa who would have the last laugh, but outsiders Brazil who controlled the race from start to finish to win in 3:21.71.
| POS | ATHLETE | COUNTRY | MARK | REACTION TIME | |
|---|---|---|---|---|---|
| 1 | BRAZIL U18 |  BRA |
3:21.71 | 0.201 | |
| 2 | JAMAICA U18 |  JAM |
3:22.23 | 0.230 | |
| 3 | SOUTH AFRICA U18 |  RSA |
3:24.45 | 0.215 | |
| 4 | KENYA U18 |  KEN |
3:24.92 | 0.220 | |
| 5 | UKRAINE U18 |  UKR |
3:28.14 | 0.218 | |
| 6 | PR OF CHINA U18 |  CHN |
3:31.74 | 0.212 | |
| 7 | ROMANIA U18 |  ROU |
3:34.70 | 0.240 | |
| GERMANY U18 |