| POS | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|
| 1 | Jamaica U20 |  JAM | 3:09.17 Q WJL | |
| 2 | Bahamas U20 |  BAH | 3:10.10 Q SB | |
| 3 | Hungary U20 |  HUN | 3:10.20 SB | |
| 4 | Ukraine U20 |  UKR | 3:11.24 SB | |
| 5 | Puerto Rico U20 |  PUR | 3:12.58 SB | |
| 6 | Kenya U20 |  KEN | 3:13.44 SB | |
| 7 | Australia U20 |  AUS | 3:13.84 SB | |
| 8 | Lithuania U20 |  LTU | 3:16.75 SB | |
| 9 | Senegal U20 |  SEN | 3:17.71 SB | 
| POS | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|
| 1 | Great Britain & NI U20 |  GBR | 3:06.85 Q WJL | |
| 2 | Trinidad and Tobago U20 |  TTO | 3:07.60 Q SB | |
| 3 | Poland U20 |  POL | 3:09.23 q SB | |
| 4 | Japan U20 |  JPN | 3:09.61 SB | |
| 5 | Spain U20 |  ESP | 3:10.72 SB | |
| 6 | Czech Republic U20 |  CZE | 3:12.62 SB | |
| Saudi Arabia U20 |  KSA | DQ | ||
| Turkey U20 |  TUR | DNS | 
| POS | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|
| 1 | United States U20 |  USA | 3:05.25 Q WJL | |
| 2 | Germany U20 |  GER | 3:07.35 Q SB | |
| 3 | Nigeria U20 |  NGR | 3:08.69 q SB | |
| 4 | Ireland U20 |  IRL | 3:10.17 NJ | |
| 5 | Botswana U20 |  BOT | 3:11.08 | |
| 6 | Italy U20 |  ITA | 3:11.33 SB | |
| 7 | South Africa U20 |  RSA | 3:12.09 SB | |
| 8 | France U20 |  FRA | 3:13.71 SB |