The men's 400 metres event at the 1992 World Junior Championships in Athletics was held in Seoul, Korea, at Olympic Stadium on 16, 17 and 18 September. [1] [2]
| Gold | Deon Minor |
| Silver | Rikard Rasmusson |
| Bronze | Francis Ogola |
18 September
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| Deon Minor | 45.75 | |||
| Rikard Rasmusson | 46.07 | |||
| Francis Ogola | 46.16 | |||
| 4 | Udeme Ekpeyong | 46.54 | ||
| 5 | Carl Southam | 46.74 | ||
| 6 | Emmanuel Okoli | 46.78 | ||
| 7 | Guy Bullock | 46.81 | ||
| 8 | Milton Mallard | 47.46 |
17 September
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Deon Minor | 46.12 | Q | |
| 2 | Carl Southam | 46.59 | Q | |
| 3 | Emmanuel Okoli | 46.73 | q | |
| 4 | Delon Felix | 47.41 | ||
| 5 | Declan Stack | 47.59 | ||
| 6 | Carl McPherson | 47.94 | ||
| 7 | Hezron Maina | 48.27 | ||
| 8 | Chen Ming-Yih | 50.75 |
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Rikard Rasmusson | 46.46 | Q | |
| 2 | Udeme Ekpeyong | 46.62 | Q | |
| 3 | Milton Mallard | 46.77 | q | |
| 4 | Takayuki Sudo | 47.11 | ||
| 5 | Foday Sillah | 47.54 | ||
| 6 | Steven Kingston | 47.84 | ||
| 7 | David Anderson | 48.18 | ||
| 8 | Bekele Ergego | 48.51 |
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Francis Ogola | 46.66 | Q | |
| 2 | Guy Bullock | 46.74 | Q | |
| 3 | Arthémon Hatungimana | 46.78 | ||
| 4 | Mark Graham | 47.16 | ||
| 5 | Hiroyuki Hayashi | 47.50 | ||
| 6 | Marcus Rau | 47.51 | ||
| 7 | Michele D'Angelo | 48.39 | ||
| Greg Haughton | DQ | IAAF rule 162.7 |
16 September
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Milton Mallard | 47.35 | Q | |
| 2 | Takayuki Sudo | 47.59 | Q | |
| 3 | Rikard Rasmusson | 47.60 | Q | |
| 4 | Greg Haughton | 47.73 | Q | |
| 5 | Michele D'Angelo | 47.94 | q | |
| 6 | Steven Kingston | 47.98 | q | |
| 7 | Nick Cowan | 48.32 | ||
| 8 | Ronaldo dos Anjos | 48.69 |
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Arthémon Hatungimana | 47.31 | Q | |
| 2 | Carl McPherson | 47.35 | Q | |
| 3 | Hezron Maina | 47.65 | Q | |
| 4 | Bekele Ergego | 48.99 | Q | |
| 5 | Eduardo Fernández | 49.57 | ||
| 6 | Salem Nasser Hawas Jaman | 49.62 | ||
| 7 | Sanderlei Parrela | 49.64 |
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Deon Minor | 46.63 | Q | |
| 2 | Carl Southam | 47.05 | Q | |
| 3 | Emmanuel Okoli | 47.26 | Q | |
| 4 | Foday Sillah | 47.80 | Q | |
| 5 | Chen Ming-Yih | 48.30 | q | |
| 6 | Lee Un-Hak | 48.59 | ||
| 7 | Shaun Farrell | 48.68 |
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Udeme Ekpeyong | 47.05 | Q | |
| 2 | Mark Graham | 47.61 | Q | |
| 3 | Hiroyuki Hayashi | 47.81 | Q | |
| 4 | Delon Felix | 48.02 | Q | |
| 5 | Julian Voelkel | 48.39 | ||
| 6 | Simon Kipkemboi | 49.02 |
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Francis Ogola | 47.22 | Q | |
| 2 | Marcus Rau | 47.62 | Q | |
| 3 | David Anderson | 47.68 | Q | |
| 4 | Declan Stack | 48.07 | Q | |
| 5 | Guy Bullock | 48.27 | q | |
| 6 | Masoud Al-Rahman | 48.40 | ||
| 7 | Mariusz Obarek | 48.92 |
According to an unofficial count, 35 athletes from 24 countries participated in the event.