# 1990 World Junior Championships in Athletics – Men's 100 metres

The men's 100 metres event at the 1990 World Junior Championships in Athletics was held in Plovdiv, Bulgaria, at Deveti Septemvri Stadium on 8 and 9 August.

## Medalists

| Gold | Davidson Ezinwa Nigeria |
| Silver | Jason Livingston United Kingdom |
| Bronze | Rodney Bridges United States |

## Results
### Final

9 August Wind: +0.6 m/s
| Rank | Name | Nationality | Time |
| | Davidson Ezinwa | Nigeria | 10.17 |
| | Jason Livingston | United Kingdom | 10.25 |
| | Rodney Bridges | United States | 10.37 |
| 4 | Jason John | United Kingdom | 10.40 |
| 5 | Donovan Powell | Jamaica | 10.44 |
| 6 | Damien Marsh | Australia | 10.46 |
| 7 | Innocent Asonze | Nigeria | 10.50 |
| 8 | Edgar Chourio | Venezuela | 10.59 |

### Semifinals

9 August

#### Semifinal 1

Wind: +2.1 m/s
| Rank | Name | Nationality | Time | Notes |
| 1 | Innocent Asonze | Nigeria | 10.30 w | Q |
| 2 | Rodney Bridges | United States | 10.35 w | Q |
| 3 | Donovan Powell | Jamaica | 10.37 w | Q |
| 4 | Jason John | United Kingdom | 10.38 w | Q |
| 5 | Andrea Amici | Italy | 10.45 w | |
| 6 | Christian Konieczny | West Germany | 10.50 w | |
| 7 | Peter Ogilvie | Canada | 10.54 w | |
| 8 | Stefaan Allemeersh | Belgium | 10.63 w | |

#### Semifinal 2

Wind: +0.7 m/s
| Rank | Name | Nationality | Time | Notes |
| 1 | Davidson Ezinwa | Nigeria | 10.30 | Q |
| 2 | Jason Livingston | United Kingdom | 10.35 | Q |
| 3 | Damien Marsh | Australia | 10.47 | Q |
| 4 | Edgar Chourio | Venezuela | 10.49 | Q |
| 5 | Satoru Inoue | Japan | 10.57 | |
| 6 | Curtis Johnson | United States | 10.60 | |
| 7 | Konstantin Gromadskiy | Soviet Union | 10.65 | |
| 8 | Clinton Bufuku | Zambia | 11.52 | |

### Quarterfinals

8 August

#### Quarterfinal 1

Wind: -2.1 m/s
| Rank | Name | Nationality | Time | Notes |
| 1 | Innocent Asonze | Nigeria | 10.49 | Q |
| 2 | Curtis Johnson | United States | 10.64 | Q |
| 3 | Christian Konieczny | West Germany | 10.67 | Q |
| 4 | Peter Ogilvie | Canada | 10.75 | Q |
| 5 | Paul Henderson | Australia | 10.83 | |
| 6 | Giorgio Marras | Italy | 11.01 | |
| 7 | Plamen Stoyanov | Bulgaria | 11.04 | |
| 8 | Roman Galkin | Soviet Union | 11.05 | |

#### Quarterfinal 2

Wind: -1.4 m/s
| Rank | Name | Nationality | Time | Notes |
| 1 | Davidson Ezinwa | Nigeria | 10.46 | Q |
| 2 | Damien Marsh | Australia | 10.57 | Q |
| 3 | Andrea Amici | Italy | 10.59 | Q |
| 4 | Jason John | United Kingdom | 10.59 | Q |
| 5 | Gilles Bogui | Côte d'Ivoire | 10.66 | |
| 6 | Patrick Mistocco | France | 10.73 | |
| 7 | Hirokazu Sato | Japan | 10.76 | |
| 8 | Laurent Kemp | Luxembourg | 10.98 | |

#### Quarterfinal 3

Wind: +0.5 m/s
| Rank | Name | Nationality | Time | Notes |
| 1 | Rodney Bridges | United States | 10.38 | Q |
| 2 | Jason Livingston | United Kingdom | 10.38 | Q |
| 3 | Edgar Chourio | Venezuela | 10.53 | Q |
| 4 | Stefaan Allemeersh | Belgium | 10.65 | Q |
| 5 | Jean-Olivier Zirignon | Côte d'Ivoire | 10.66 | |
| 6 | Joel Lamela | Cuba | 10.72 | |
| 7 | José Carlos Rivas | Spain | 10.73 | |
| 8 | Christoph Pöstinger | Austria | 10.80 | |

#### Quarterfinal 4

Wind: -1.8 m/s
| Rank | Name | Nationality | Time | Notes |
| 1 | Donovan Powell | Jamaica | 10.50 | Q |
| 2 | Satoru Inoue | Japan | 10.61 | Q |
| 3 | Konstantin Gromadskiy | Soviet Union | 10.67 | Q |
| 4 | Clinton Bufuku | Zambia | 10.68 | Q |
| 5 | Ricardo Greenidge | Canada | 10.69 | |
| 6 | Leonardo Prevot | Cuba | 10.69 | |
| 7 | Reinaldo Santana | Venezuela | 10.77 | |
| 8 | Peter Oldin | Sweden | 10.80 | |

### Heats

8 August

#### Heat 1

Wind: -1.0 m/s
| Rank | Name | Nationality | Time | Notes |
| 1 | Edgar Chourio | Venezuela | 10.53 | Q |
| 2 | Damien Marsh | Australia | 10.66 | Q |
| 2 | Christian Konieczny | West Germany | 10.66 | Q |
| 4 | Peter Ogilvie | Canada | 10.72 | Q |
| 5 | Jean-Olivier Zirignon | Côte d'Ivoire | 10.80 | q |
| 6 | Raymond Nelson | Jamaica | 10.87 | |
| 6 | Alexander Lack | East Germany | 10.87 | |
| 8 | Getachew Legesse | Ethiopia | 11.10 | |

#### Heat 2

Wind: +2.0 m/s
| Rank | Name | Nationality | Time | Notes |
| 1 | Davidson Ezinwa | Nigeria | 10.45 | Q |
| 2 | Jason John | United Kingdom | 10.53 | Q |
| 3 | Paul Henderson | Australia | 10.54 | Q |
| 4 | Reinaldo Santana | Venezuela | 10.67 | Q |
| 5 | Laurent Kemp | Luxembourg | 10.78 | q |
| 6 | Eugene Farrell | Ireland | 10.85 | |
| 7 | Franck Zio | Burkina Faso | 11.11 | |
| 8 | Bothloke Shebe | Lesotho | 11.21 | |

#### Heat 3

Wind: -0.1 m/s
| Rank | Name | Nationality | Time | Notes |
| 1 | Rodney Bridges | United States | 10.50 | Q |
| 2 | Donovan Powell | Jamaica | 10.52 | Q |
| 3 | Giorgio Marras | Italy | 10.65 | Q |
| 4 | José Carlos Rivas | Spain | 10.66 | Q |
| 5 | Peter Oldin | Sweden | 10.78 | q |
| 6 | Plamen Stoyanov | Bulgaria | 10.80 | q |
| 7 | Garib Tahir | Sudan | 11.69 | |

#### Heat 4

Wind: -0.9 m/s
| Rank | Name | Nationality | Time | Notes |
| 1 | Innocent Asonze | Nigeria | 10.43 | Q |
| 2 | Hirokazu Sato | Japan | 10.85 | Q |
| 3 | Christoph Pöstinger | Austria | 10.87 | Q |
| 4 | Ricardo Greenidge | Canada | 10.93 | Q |
| 5 | Darren Haddock | Ireland | 10.99 | |
| 6 | Jari Haverinen | Finland | 11.03 | |
| 7 | Zepee Mberiuana | Namibia | 11.10 | |
| 8 | Yeóryios Papadópoulos | Greece | 11.18 | |

#### Heat 5

Wind: -0.2 m/s
| Rank | Name | Nationality | Time | Notes |
| 1 | Curtis Johnson | United States | 10.54 | Q |
| 2 | Andrea Amici | Italy | 10.58 | Q |
| 3 | Joel Lamela | Cuba | 10.66 | Q |
| 4 | Roman Galkin | Soviet Union | 10.74 | Q |
| 5 | Torbjörn Eriksson | Sweden | 10.88 | |
| 6 | Anninos Marcoullides | Cyprus | 10.90 | |
| 7 | Konstadínos Koutsoumbas | Greece | 10.93 | |
| 8 | Martin Frick | Liechtenstein | 11.14 | |

#### Heat 6

Wind: +0.7 m/s
| Rank | Name | Nationality | Time | Notes |
| 1 | Leonardo Prevot | Cuba | 10.51 | Q |
| 2 | Satoru Inoue | Japan | 10.58 | Q |
| 3 | Stefaan Allemeersh | Belgium | 10.62 | Q |
| 4 | Gilles Bogui | Côte d'Ivoire | 10.63 | Q |
| 5 | Adrian Bobb | Trinidad and Tobago | 10.99 | |
| 6 | Aleksandar Popović | Yugoslavia | 11.01 | |
| 7 | Marvin Bennett | Saint Kitts and Nevis | 11.21 | |
| 8 | Mark Sullivan | Malta | 11.77 | |

#### Heat 7

Wind: +0.4 m/s
| Rank | Name | Nationality | Time | Notes |
| 1 | Jason Livingston | United Kingdom | 10.55 | Q |
| 2 | Konstantin Gromadskiy | Soviet Union | 10.60 | Q |
| 3 | Clinton Bufuku | Zambia | 10.66 | Q |
| 4 | Patrick Mistocco | France | 10.67 | Q |
| 5 | Julio César de Prado | Spain | 10.84 | |
| 6 | Alexander Rehm | West Germany | 10.85 | |
| 7 | Adi Paz | Israel | 10.93 | |
| 8 | Marco Ortíz | Bolivia | 11.16 | |

## Participation

According to an unofficial count, 55 athletes from 38 countries participated in the event.
* Australia (2)
* Austria (1)
* Belgium (1)
* Bolivia (1)
* Bulgaria (1)
* Burkina Faso (1)
* Canada (2)
* Côte d'Ivoire (2)
* Cuba (2)
* Cyprus (1)
* East Germany (1)
* Ethiopia (1)
* Finland (1)
* France (1)
* Greece (2)
* Ireland (2)
* Israel (1)
* Italy (2)
* Jamaica (2)
* Japan (2)
* Lesotho (1)
* Liechtenstein (1)
* Luxembourg (1)
* Malta (1)
* Namibia (1)
* Nigeria (2)
* Saint Kitts and Nevis (1)
* Soviet Union (2)
* Spain (2)
* Sudan (1)
* Sweden (2)
* Trinidad and Tobago (1)
* United Kingdom (2)
* United States (2)
* Venezuela (2)
* West Germany (2)
* Yugoslavia (1)
* Zambia (1)