| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS |
|---|---|---|---|---|---|---|
| 1 | 1 | 2 | USA | United States U20 |
USA |
3:32.73 Q WJL |
| 2 | 2 | 2 | CAN | Canada U20 |
CAN |
3:34.88 Q SB |
| 3 | 3 | 2 | NGR | Nigeria U20 |
NGR |
3:34.99 Q SB |
| 4 | 1 | 1 | GBR | Great Britain & NI U20 |
GBR |
3:35.37 Q SB |
| 5 | 2 | 1 | JAM | Jamaica U20 |
JAM |
3:38.89 Q |
| 6 | 4 | 2 | AUS | Australia U20 |
AUS |
3:39.18 q SB |
| 7 | 3 | 1 | POL | Poland U20 |
POL |
3:39.51 Q SB |
| 8 | 5 | 2 | GER | Germany U20 |
GER |
3:39.78 q SB |
| 9 | 6 | 2 | SLO | Slovenia U20 |
SLO |
3:42.91 NJR |
| 10 | 4 | 1 | ITA | Italy U20 |
ITA |
3:43.06 SB |
| 11 | 5 | 1 | FRA | France U20 |
FRA |
3:46.68 SB |
| 12 | 6 | 1 | IND | India U20 |
IND |
3:52.75 |
| 1 | CZE | Czech Republic U20 |
CZE |
DQ R163.5 |