# 1986 World Junior Championships in Athletics – Men's 400 metres

The men's 400 metres event at the 1986 World Junior Championships in Athletics was held in Athens, Greece, at Olympic Stadium on 16 and 18 July.

## Medalists

| Gold | Miles Murphy Australia |
| Silver | Roberto Hernández Cuba |
| Bronze | Edgar Itt West Germany |

## Results
### Final

18 July
| Rank | Name | Nationality | Time |
| | Miles Murphy | Australia | 45.64 |
| | Roberto Hernández | Cuba | 45.64 |
| | Edgar Itt | West Germany | 45.72 |
| 4 | Eulogio Mordoche | Cuba | 46.52 |
| 5 | Clifton Campbell | United States | 46.52 |
| 6 | Joseph Falaye | Nigeria | 46.81 |
| 7 | Peter Crampton | United Kingdom | 47.26 |
| 8 | Chip Rish | United States | 47.50 |

### Semifinals

18 July

#### Semifinal 1

| Rank | Name | Nationality | Time | Notes |
| 1 | Clifton Campbell | United States | 45.94 | Q |
| 2 | Edgar Itt | West Germany | 46.41 | Q |
| 3 | Yusuf Bakare | Nigeria | 46.82 | |
| 4 | Aleksandr Ovchinnikov | Soviet Union | 46.86 | |
| 5 | Roland Moens | Belgium | 47.65 | |
| 6 | Krzysztof Sidowski | Poland | 47.92 | |
| 7 | Keiichi Adachi | Japan | 47.94 | |
| 8 | Seibert Straughn | Barbados | 48.29 | |

#### Semifinal 2

| Rank | Name | Nationality | Time | Notes |
| 1 | Eulogio Mordoche | Cuba | 46.34 | Q |
| 2 | Joseph Falaye | Nigeria | 46.51 | Q |
| 3 | Mark Tyler | United Kingdom | 46.95 | |
| 4 | Joseph Sainah | Kenya | 46.96 | |
| 5 | Tibor Martina | Hungary | 47.11 | |
| 6 | Yvan Delrue | Belgium | 47.32 | |
| 7 | Slobodan Branković | Yugoslavia | 47.44 | |
| 8 | António Abrantes | Portugal | 48.33 | |

#### Semifinal 3

| Rank | Name | Nationality | Time | Notes |
| 1 | Roberto Hernández | Cuba | 45.53 | Q |
| 2 | Miles Murphy | Australia | 46.02 | Q |
| 3 | Chip Rish | United States | 46.33 | q |
| 4 | Peter Crampton | United Kingdom | 46.78 | q |
| 5 | Tamás Molnár | Hungary | 46.96 | |
| 6 | Vladimir Lytkin | Soviet Union | 47.44 | |
| 7 | Dawda Jallow | Gambia | 48.01 | |
| 8 | Carl Folkes | Canada | 48.27 | |

### Heats

16 July

#### Heat 1

| Rank | Name | Nationality | Time | Notes |
| 1 | Joseph Falaye | Nigeria | 46.63 | Q |
| 2 | Aleksandr Ovchinnikov | Soviet Union | 46.99 | Q |
| 3 | Dawda Jallow | Gambia | 47.16 | Q |
| 4 | Tamás Molnár | Hungary | 47.17 | q |
| 5 | Željko Kerošević | Yugoslavia | 48.83 | |
| 6 | Hossain Milzer | Bangladesh | 48.96 | |
| 7 | Ali Yacoub Ismail Ishaq | Kuwait | 49.52 | |
| 8 | Awad Ead Awad | Egypt | 50.42 | |

#### Heat 2

| Rank | Name | Nationality | Time | Notes |
| 1 | Clifton Campbell | United States | 46.60 | Q |
| 2 | Roland Moens | Belgium | 47.33 | Q |
| 3 | Seibert Straughn | Barbados | 47.70 | Q |
| 4 | Manuel Moreno | Spain | 48.29 | |
| 5 | Tshokolo Peloethata | Botswana | 48.66 | |
| 6 | James Dunda | Canada | 48.78 | |
| 7 | Washington Rodrigues | Brazil | 49.79 | |
| 8 | Horace Dove-Edwin | Sierra Leone | 52.12 | |

#### Heat 3

| Rank | Name | Nationality | Time | Notes |
| 1 | Edgar Itt | West Germany | 47.02 | Q |
| 2 | Tibor Martina | Hungary | 47.49 | Q |
| 3 | Vladimir Lytkin | Soviet Union | 47.83 | Q |
| 4 | Nicola Mastroianni | Italy | 48.28 | |
| 5 | Yeóryios Panayiotopoulos | Greece | 48.82 | |
| 6 | Sultan Abdulrahman | Saudi Arabia | 48.97 | |
| 7 | Omar Ibrahim | Egypt | 51.14 | |

#### Heat 4

| Rank | Name | Nationality | Time | Notes |
| 1 | Miles Murphy | Australia | 46.83 | Q |
| 2 | Joseph Sainah | Kenya | 47.17 | Q |
| 3 | Slobodan Branković | Yugoslavia | 47.28 | Q |
| 4 | António Abrantes | Portugal | 47.91 | q |
| 5 | Dariusz Rychter | Poland | 48.30 | |
| 6 | Moses Phiri | Zambia | 50.39 | |
| 7 | Paul Prea | Seychelles | 50.69 | |

#### Heat 5

| Rank | Name | Nationality | Time | Notes |
| 1 | Chip Rish | United States | 47.34 | Q |
| 2 | Yvan Delrue | Belgium | 47.75 | Q |
| 3 | Mark Tyler | United Kingdom | 47.80 | Q |
| 4 | Keiichi Adachi | Japan | 48.18 | q |
| 5 | Nicos Adamou | Cyprus | 48.93 | |
| 6 | Khayar Seck | Senegal | 49.12 | |
| 7 | M.Adam Salih | Sudan | 50.81 | |

#### Heat 6

| Rank | Name | Nationality | Time | Notes |
| 1 | Roberto Hernández | Cuba | 46.75 | Q |
| 2 | Carl Folkes | Canada | 47.58 | Q |
| 3 | Peter Crampton | United Kingdom | 48.17 | Q |
| 4 | Craig Purdy | New Zealand | 48.81 | |
| 5 | Legesse Dereba | Ethiopia | 48.99 | |
| 6 | Yuji Yoshioka | Japan | 49.39 | |
| 7 | Marco Tamagnini | San Marino | 52.33 | |
| 8 | Salem Matar | United Arab Emirates | 53.23 | |

#### Heat 7

| Rank | Name | Nationality | Time | Notes |
| 1 | Eulogio Mordoche | Cuba | 46.91 | Q |
| 2 | Yusuf Bakare | Nigeria | 47.45 | Q |
| 3 | Krzysztof Sidowski | Poland | 47.79 | Q |
| 4 | Scott Bowden | New Zealand | 48.46 | |
| 5 | Christopher Mbilo | Tanzania | 48.76 | |
| 6 | Nikólaos Doúbas | Greece | 49.25 | |
| 7 | Pedro Maroto | Spain | 50.56 | |
| 8 | Oum Sidet | Cambodia | 53.17 | |

## Participation

According to an unofficial count, 53 athletes from 38 countries participated in the event.
* Australia (1)
* Bangladesh (1)
* Barbados (1)
* Belgium (2)
* Botswana (1)
* Brazil (1)
* Cambodia (1)
* Canada (2)
* Cuba (2)
* Cyprus (1)
* Egypt (2)
* Ethiopia (1)
* Gambia (1)
* Greece (2)
* Hungary (2)
* Italy (1)
* Japan (2)
* Kenya (1)
* Kuwait (1)
* New Zealand (2)
* Nigeria (2)
* Poland (2)
* Portugal (1)
* San Marino (1)
* Saudi Arabia (1)
* Senegal (1)
* Seychelles (1)
* Sierra Leone (1)
* Soviet Union (2)
* Spain (2)
* Sudan (1)
* Tanzania (1)
* United Arab Emirates (1)
* United Kingdom (2)
* United States (2)
* West Germany (1)
* Yugoslavia (2)
* Zambia (1)