The Boys' 400 metres at the 2009 World Youth Championships in Athletics was held at the Brixen-Bressanone Sport Arena on 8, 9, and 10 July. [1] The event was won by Kirani James of Grenada, who also won the 200 metres. [2]
The Boys' 400 metres at the 2009 World Youth Championships in Athletics was held at the Brixen-Bressanone Sport Arena on 8, 9, and 10 July. [1] The event was won by Kirani James of Grenada, who also won the 200 metres. [2]
| Gold | Silver | Bronze |
|---|---|---|
Kirani James  Grenada | Joshua Mance  United States | Awad El Karim Makki  Sudan |
Prior to the competition, the following records were as follows.
| World Youth Best | Obea Moore (USA) | 45.14 | Santiago, Chile | 2 September 1995 |
| Championship Record | Nagmeldin Ali Abubakr (SUD) | 46.10 | Sherbrooke, Canada | 12 July 2003 |
| World Youth Leading | Kirani James (GRN) | 45.45 | Vieux Fort, St. Lucia | 11 April 2009 |
Kirani James set a new Championship Record and World Youth Leading in the final.
Qualification rule: first 2 of each heat (Q) plus the 4 fastest times (q) qualified.
Qualification rule: first 2 of each heat (Q) plus the 2 fastest times (q) qualified.
| Rank | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
| 1 | 6 | Javere Bell |  Jamaica | 48.03 | Q |
| 2 | 8 | Varg Königsmark |  Germany | 48.04 | Q |
| 3 | 3 | Alexander Beck |  Australia | 48.17 | |
| 4 | 2 | Leandro de Araújo |  Brazil | 48.19 | |
| 5 | 5 | Anthony Chemut |  Kenya | 48.60 | |
| 6 | 4 | Lestrod Roland |  Saint Kitts and Nevis | 48.61 | |
| 7 | 7 | Mohamed Chetoui |  Algeria | 49.40 | |
| 8 | 1 | Nadir Abdelrahman | Sudan | 49.85 |
Key: PB = Personal best, SB = Seasonal best
| Rank | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
| 1 | 5 | Kirani James | Grenada | 46.43 | Q |
| 2 | 3 | Joshua Mance |  United States | 46.65 | Q |
| 3 | 4 | Nathan Wake |  Great Britain | 46.86 | q, PB |
| 4 | 6 | Shogo Momiki |  Japan | 47.51 | q |
| 5 | 7 | Hadi Nsamba |  Uganda | 48.05 | PB |
| 6 | 8 | Deon Lendore |  Trinidad and Tobago | 48.20 | PB |
| 7 | 1 | Benjamin Ayesu-Attah |  Canada | 48.72 | |
| 8 | 2 | Michael Kruger |  South Africa | 48.89 |
Key: PB = Personal best, SB = Seasonal best
| Rank | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
| 1 | 5 | Awad El Karim Makki | Sudan | 47.49 | Q, SB |
| 2 | 6 | Frazer Wickes |  New Zealand | 48.05 | Q |
| 3 | 4 | Jacques de Swardt | South Africa | 48.29 | |
| 4 | 3 | Ko Kayada | Japan | 48.59 | |
| 5 | 1 | Greg Louden | Great Britain | 48.71 | |
| 6 | 2 | Bertrán Alcaraz |  Spain | 49.63 | |
| 7 | 7 | Nathan Kibiwot | Kenya | 50.04 | |
| 8 | 8 | Davide Re |  Italy | 50.63 |
Key: PB = Personal best, SB = Seasonal best
| Rank | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
 | 3 | Kirani James | Grenada | 45.24 | PB, CR, WYL |
 | 4 | Joshua Mance | United States | 46.22 | PB |
 | 6 | Awad El Karim Makki | Sudan | 47.15 | SB |
| 4 | 2 | Nathan Wake | Great Britain | 47.20 | |
| 5 | 7 | Frazer Wickes | New Zealand | 47.66 | |
| 6 | 5 | Javere Bell | Jamaica | 47.89 | PB |
| 7 | 1 | Shogo Momiki | Japan | 48.01 | |
| 8 | 8 | Varg Königsmark | Germany | 48.12 |
Key: PB = Personal best, SB = Seasonal best, CR = Championship record, WYL = World Youth Leading