# 1992 World Junior Championships in Athletics – Men's 400 metres hurdles

The men's 400 metres hurdles event at the 1992 World Junior Championships in Athletics was held in Seoul, Korea, at Olympic Stadium on 16, 17 and 18 September.

## Medalists

| Gold | Ashraf Saber Italy |
| Silver | Sammy Biwott Kenya |
| Bronze | William Porter United States |

## Results
### Final

18 September
| Rank | Name | Nationality | Time |
| | Ashraf Saber | Italy | 50.02 |
| | Sammy Biwott | Kenya | 50.75 |
| | William Porter | United States | 51.37 |
| 4 | Wessel Dippenaar | South Africa | 51.50 |
| 5 | Steffen Kolb | Germany | 51.73 |
| 6 | Kehinde Aladefa | Nigeria | 51.85 |
| 7 | Alejandro Argudin | Cuba | 52.05 |
| 8 | Gary Brown | Australia | 53.45 |

### Semifinals

17 September

#### Semifinal 1

| Rank | Name | Nationality | Time | Notes |
| 1 | Ashraf Saber | Italy | 50.42 | Q |
| 2 | Sammy Biwott | Kenya | 50.62 | Q |
| 3 | Alejandro Argudin | Cuba | 51.25 | Q |
| 4 | Wessel Dippenaar | South Africa | 51.63 | Q |
| 5 | Regan Nichols | United States | 51.84 | |
| 6 | Kostas Pochanis | Cyprus | 51.85 | |
| 7 | Carlos Silva | Portugal | 52.57 | |
| 8 | Seiji Inagaki | Japan | 53.15 | |

#### Semifinal 2

| Rank | Name | Nationality | Time | Notes |
| 1 | William Porter | United States | 51.27 | Q |
| 2 | Kehinde Aladefa | Nigeria | 52.08 | Q |
| 3 | Steffen Kolb | Germany | 52.08 | Q |
| 4 | Gary Brown | Australia | 52.25 | Q |
| 5 | Chiu Wensheng | Chinese Taipei | 52.51 | |
| 6 | Kenko Matsue | Japan | 52.77 | |
| 7 | Albert Ramírez | Cuba | 53.63 | |
| 8 | Victor Mendoza | Peru | 54.42 | |

### Heats

16 September

#### Heat 1

| Rank | Name | Nationality | Time | Notes |
| 1 | Steffen Kolb | Germany | 51.82 | Q |
| 2 | Albert Ramírez | Cuba | 52.15 | Q |
| 3 | Regan Nichols | United States | 52.30 | q |
| 4 | Gary Brown | Australia | 52.88 | q |
| 5 | Abdurrahim Nayeem | Bangladesh | 53.77 | |
| 6 | Ian Weakley | Jamaica | 57.50 | |

#### Heat 2

| Rank | Name | Nationality | Time | Notes |
| 1 | Ashraf Saber | Italy | 52.10 | Q |
| 2 | Victor Mendoza | Peru | 52.77 | Q |
| 3 | Arturo Castillon | Mexico | 52.97 | |
| 4 | Petteri Pulkkinen | Finland | 53.25 | |
| 5 | Shawn Browne | Barbados | 55.09 | |
| | Everson Teixeira | Brazil | DNF | |

#### Heat 3

| Rank | Name | Nationality | Time | Notes |
| 1 | Sammy Biwott | Kenya | 51.39 | Q |
| 2 | Kostas Pochanis | Cyprus | 52.17 | Q |
| 3 | Wessel Dippenaar | South Africa | 52.45 | q |
| 4 | Daniel Blochwitz | Germany | 53.05 | |
| 5 | Jean-Sébastien Dauch | France | 53.33 | |
| 6 | Rok Kop | Slovenia | 55.93 | |
| 7 | Chris Carroll | Australia | 56.39 | |

#### Heat 4

| Rank | Name | Nationality | Time | Notes |
| 1 | William Porter | United States | 51.75 | Q |
| 2 | Kehinde Aladefa | Nigeria | 51.77 | Q |
| 3 | Alejandro Argudin | Cuba | 52.03 | q |
| 4 | Chiu Wensheng | Chinese Taipei | 52.23 | q |
| 5 | Seiji Inagaki | Japan | 52.50 | q |
| 6 | Salvador Chamor | Mexico | 53.32 | |
| 7 | Sérgio Ribeiro | Brazil | 54.10 | |

#### Heat 5

| Rank | Name | Nationality | Time | Notes |
| 1 | Carlos Silva | Portugal | 52.56 | Q |
| 2 | Kenko Matsue | Japan | 52.73 | Q |
| 3 | Lee Jung-Ho | South Korea | 53.00 | |
| 4 | Mohamed Al-Bishi | Saudi Arabia | 53.17 | |
| 5 | Alexander Ponev | Bulgaria | 53.19 | |
| 6 | Silvio Pelissero | Italy | 53.30 | |

## Participation

According to an unofficial count, 32 athletes from 24 countries participated in the event.
* Australia (2)
* Bangladesh (1)
* Barbados (1)
* Brazil (2)
* Bulgaria (1)
* Chinese Taipei (1)
* Cuba (2)
* Cyprus (1)
* Finland (1)
* France (1)
* Germany (2)
* Italy (2)
* Jamaica (1)
* Japan (2)
* Kenya (1)
* Mexico (2)
* Nigeria (1)
* Peru (1)
* Portugal (1)
* Saudi Arabia (1)
* Slovenia (1)
* South Africa (1)
* South Korea (1)
* United States (2)