| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS | 
|---|---|---|---|---|---|---|
| 1 | 1 | 1 | JPN | Japan U18 |  JPN | 1:52.18 Q WYL | 
| 2 | 1 | 3 | USA | United States U18 |  USA | 1:52.19 Q SB | 
| 3 | 2 | 1 | QAT | Qatar U18 |  QAT | 1:52.47 q PB | 
| 4 | 1 | 4 | JAM | Jamaica U18 |  JAM | 1:52.78 Q SB | 
| 5 | 1 | 2 | NGR | Nigeria U18 |  NGR | 1:52.90 Q PB | 
| 6 | 2 | 2 | BAH | Bahamas U18 |  BAH | 1:53.38 q SB | 
| 7 | 3 | 1 | HUN | Hungary U18 |  HUN | 1:54.01 q PB | 
| 8 | 4 | 1 | POL | Poland U18 |  POL | 1:54.29 q SB | 
| 9 | 2 | 3 | BRN | Bahrain U18 |  BRN | 1:54.32 PB | 
| 10 | 3 | 3 | PUR | Puerto Rico U18 |  PUR | 1:54.64 SB | 
| 11 | 4 | 3 | UKR | Ukraine U18 |  UKR | 1:55.56 SB | 
| 12 | 2 | 4 | ESP | Spain U18 |  ESP | 1:55.61 SB | 
| 13 | 3 | 4 | CAN | Canada U18 |  CAN | 1:55.72 SB | 
| 14 | 3 | 2 | ROU | Romania U18 |  ROU | 1:55.90 PB | 
| 15 | 4 | 4 | NOR | Norway U18 |  NOR | 1:56.92 SB | 
| 16 | 4 | 2 | RUS | Russia U18 |  RUS | 1:57.56 SB | 
| 17 | 5 | 4 | ZIM | Zimbabwe U18 |  ZIM | 1:57.77 | 
| 18 | 5 | 3 | CHN | PR of China U18 |  CHN | 1:57.80 SB | 
| 19 | 5 | 2 | SLO | Slovenia U18 |  SLO | 1:58.42 PB | 
| 20 | 5 | 1 | KAZ | Kazakhstan U18 |  KAZ | 2:00.60 SB | 
| 21 | 6 | 2 | ALG | Algeria U18 |  ALG | 2:01.52 | 
| 22 | 6 | 4 | OMA | Oman U18 |  OMA | 2:01.63 | 
| 2 | ITA | Italy U18 |  ITA | DQ | ||
| 3 | RSA | South Africa U18 |  RSA | DQ | ||
| 4 | FIJ | Fiji U18 |  FIJ | DQ | ||
| 1 | GBR | Great Britain & N.I. U18 |  GBR | DNS | ||
| 3 | DEN | Denmark U18 |  DEN | DNS |