The men's 400 metres hurdles event at the 2008 World Junior Championships in Athletics was held in Bydgoszcz, Poland, at Zawisza Stadium on 9, 10 and 11 July. [1] [2]
| Gold | Jeshua Anderson |
| Silver | Johnny Dutch |
| Bronze | Amaurys Valle |
11 July
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| Jeshua Anderson | 48.68 | |||
| Johnny Dutch | 49.25 | |||
| Amaurys Valle | 49.56 | |||
| 4 | Cornel Fredericks | 50.39 | ||
| 5 | PC Beneke | 50.78 | ||
| 6 | Taras Shcherenko | 51.35 | ||
| 7 | John Kituu Wambua | 51.70 | ||
| 8 | David Gollnow | 53.63 |
10 July
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Johnny Dutch | 50.40 | Q | |
| 2 | Amaurys Valle | 51.17 | Q | |
| 3 | PC Beneke | 51.46 | q | |
| 4 | David Gollnow | 51.48 | q | |
| 5 | Kohei Tamemoto | 51.89 | ||
| 6 | Valdas Valintelis | 52.07 | ||
| 7 | Julius Oletygor | 52.14 | ||
| 8 | Emanuel Mayers | 52.39 |
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Jeshua Anderson | 49.90 | Q | |
| 2 | Taras Shcherenko | 51.60 | Q | |
| 3 | Giacomo Panizza | 51.73 | ||
| 4 | Sebastian Knorr | 52.31 | ||
| 5 | Leslie Murray | 52.51 | ||
| 6 | Adel Al-Nasser | 52.60 | ||
| 7 | Shane Brathwaite | 53.09 | ||
| Nikita Andriyanov | DNS |
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Cornel Fredericks | 51.11 | Q | |
| 2 | John Kituu Wambua | 51.51 | Q | |
| 3 | Tomoharu Kino | 51.96 | ||
| 4 | Michał Pietrzak | 52.22 | ||
| 5 | Jehue Gordon | 52.26 | ||
| 6 | Jassim Waleed Al-Mas | 53.05 | ||
| 7 | Silvestras Guogis | 53.46 | ||
| Artyom Dyatlov | DQ | IAAF rule 163.3 |
9 July
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Jeshua Anderson | 51.12 | Q | |
| 2 | Taras Shcherenko | 51.44 | Q | |
| 3 | Shane Brathwaite | 51.66 | Q | |
| 4 | Jehue Gordon | 52.30 | q | |
| 5 | Jassim Waleed Al-Mas | 52.43 | q | |
| 6 | Driss Sassi | 53.97 | ||
| 7 | Victor Valentin | 54.05 | ||
| 8 | Stephan Ender | 54.55 |
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Tomoharu Kino | 51.77 | Q | |
| 2 | John Kituu Wambua | 52.02 | Q | |
| 3 | Valdas Valintelis | 52.83 | Q | |
| 4 | Hamada Al-Bishi | 53.61 | ||
| 5 | Tomasz Baranowski | 53.85 | ||
| 6 | Jithin Paul | 54.01 | ||
| 7 | René Claudio | 54.51 | ||
| 8 | Chen Yu-Te | 55.57 |
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Johnny Dutch | 52.21 | Q | |
| 2 | David Gollnow | 52.34 | Q | |
| 3 | Silvestras Guogis | 52.48 | Q | |
| 4 | Julius Oletygor | 52.54 | q | |
| 5 | Fahad Faraj | 53.40 | ||
| 6 | Aleksandr Korovka | 53.94 | ||
| 7 | Nejmi Burnside | 55.21 |
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Amaurys Valle | 51.67 | Q | |
| 2 | Cornel Fredericks | 51.96 | Q | |
| 3 | Kohei Tamemoto | 52.05 | Q | |
| 4 | Nikita Andriyanov | 52.14 | q | |
| 5 | Emanuel Mayers | 52.29 | q | |
| 6 | Leslie Murray | 52.64 | q | |
| 7 | Tibor Koroknai | 53.33 | ||
| 8 | Kenneth Karosich | 58.36 |
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Michał Pietrzak | 51.89 | Q | |
| 2 | PC Beneke | 51.90 | Q | |
| 3 | Artyom Dyatlov | 52.62 | Q | |
| 4 | Hugo Grillas | 52.98 | ||
| 5 | Nathan Woodward | 53.42 | ||
| 6 | Faysal Mehdioui | 54.41 | ||
| 7 | Shejil Varghese | 54.48 | ||
| 8 | Fernando Semedo | 61.09 |
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Giacomo Panizza | 52.77 | Q | |
| 2 | Adel Al-Nasser | 52.84 | Q | |
| 3 | Sebastian Knorr | 53.25 | Q | |
| 4 | Lyes Bouzid | 54.10 | ||
| 5 | Jeffery Gibson | 54.37 | ||
| 6 | Shih Yu-Fan | 55.43 | ||
| 7 | Wilmer Valor | 59.26 |
According to an unofficial count, 46 athletes from 31 countries participated in the event.