# Athletics at the 2011 Summer Universiade – Men's 400 metres

The men's 400 metres event at the 2011 Summer Universiade was held on 11–13 August.

## Medalists

| Gold | Silver | Bronze |
| Marcell Deák-Nagy Hungary | Peter Matthews Jamaica | Sean Wroe Australia |

## Results
### Heats

Qualification: First 2 in each heat and 8 best performers advance to the Semifinals.
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 6 | Peter Matthews | Jamaica | 46.35 | Q |
| 2 | 8 | Brian Gregan | Ireland | 46.37 | Q |
| 2 | 2 | Joey Jacob Hughes | United States | 46.37 | Q |
| 4 | 8 | Obakeng Ngwigwa | Botswana | 46.48 | Q, SB |
| 5 | 2 | Serdar Tamaç | Turkey | 46.55 | Q |
| 6 | 4 | Valentin Kruglyakov | Russia | 46.57 | Q |
| 7 | 2 | Thapelo Ketlogetswe | Botswana | 46.72 | q |
| 8 | 2 | Emmanuel Tugumisirize | Uganda | 46.77 | q, PB |
| 9 | 4 | Willem de Beer | South Africa | 46.85 | Q |
| 10 | 8 | Shane Victor | South Africa | 46.90 | q |
| 11 | 4 | Yavuz Can | Turkey | 46.94 | q |
| 12 | 5 | Chang Pengben | China | 46.98 | Q |
| 12 | 3 | Sean Wroe | Australia | 46.98 | Q |
| 14 | 6 | Hiroyuki Nakano | Japan | 47.08 | Q |
| 15 | 7 | Augusto Stanley | Paraguay | 47.11 | Q |
| 16 | 5 | Anderson Henriques | Brazil | 47.12 | Q |
| 17 | 6 | Michael Robertson | Canada | 47.20 | q |
| 17 | 5 | Rafith Rodríguez | Colombia | 47.20 | q |
| 19 | 1 | Marcell Deák-Nagy | Hungary | 47.23 | Q |
| 20 | 1 | Liemarvin Bonevacia | Netherlands Antilles | 47.25 | Q |
| 21 | 1 | Dmitry Buryak | Russia | 47.29 | q |
| 22 | 3 | Hideyuki Hirose | Japan | 47.36 | Q |
| 23 | 3 | Nicklas Hyde | Denmark | 47.39 | q |
| 24 | 4 | Su Ronghai | China | 47.42 | |
| 25 | 7 | Antoine Gillet | Belgium | 47.46 | Q |
| 26 | 7 | Krasimir Braykov | Bulgaria | 47.53 | |
| 27 | 1 | Jānis Baltušs | Latvia | 47.84 | |
| 28 | 6 | Jacob Riis | Denmark | 47.94 | |
| 29 | 5 | Yuvaraaj Panerselvam | Malaysia | 48.22 | |
| 30 | 4 | Lee Moo-Yong | South Korea | 48.29 | |
| 31 | 5 | Jonas Andre Grønnhaug | Norway | 48.54 | |
| 32 | 7 | Martin Zacests | Latvia | 48.76 | |
| 33 | 2 | Gary Robinson | Costa Rica | 48.95 | |
| 34 | 8 | Muhammad Yunus Lasaleh | Malaysia | 49.16 | |
| 35 | 5 | Ramzi Naim | Lebanon | 49.17 | PB |
| 35 | 6 | Gideon Ernst Narib | Namibia | 49.17 | |
| 37 | 3 | Seong Hyeok-Je | South Korea | 49.18 | |
| 38 | 8 | Julio Pérez | Peru | 49.19 | |
| 39 | 2 | Rivar Tipp | Estonia | 49.38 | |
| 40 | 8 | Manqoba Benni Nyoni | Swaziland | 49.59 | |
| 41 | 6 | Pius Ocilaje | Uganda | 49.64 | |
| 42 | 2 | Ratutira Narara | Fiji | 49.71 | |
| 43 | 6 | Hamad Albadwawi | United Arab Emirates | 49.73 | |
| 44 | 7 | Hussain Ahmed Masrahi | Saudi Arabia | 50.65 | |
| 45 | 5 | Christopher Svensson | Sweden | 51.05 | |
| 46 | 8 | Hammam Hassan Al Farsi | Oman | 51.24 | |
| 47 | 3 | Pule Rantseli | Lesotho | 51.27 | |
| 48 | 1 | James Anyona Getengah | Kenya | 51.81 | |
| 49 | 3 | Dennis Chelimo | Kenya | 52.25 | |
| 50 | 7 | Sathasivam Sivashanger | Sri Lanka | 52.65 | |
| 51 | 1 | Bob Niamali Madrakile | DR Congo | 53.29 | |
| 52 | 6 | Lei Honweng | Macau | 53.77 | |
| 53 | 4 | Mohammedd Abdul Momin Mamun | Bangladesh | 54.04 | |
| 54 | 3 | Chang Infong | Macau | 54.07 | |
| 55 | 1 | Jason McCaffrey | Micronesia | 55.22 | |
| 56 | 7 | Ahmed Said Al Azri | Oman | 1:01.52 | |
| | 4 | Mohammed Abubakari | Ghana | DNS | |
| | 8 | Robert Annak | Ghana | DNS | |
| | 7 | Marc Orozco | Spain | DNS | |

### Semifinals

Qualification: First 2 of each semifinal (Q) and the next 2 fastest (q) qualified for the final.
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 1 | Marcell Deák-Nagy | Hungary | 45.86 | Q |
| 2 | 1 | Sean Wroe | Australia | 45.98 | Q, SB |
| 3 | 2 | Brian Gregan | Ireland | 46.00 | Q, PB |
| 4 | 1 | Joey Jacob Hughes | United States | 46.06 | q |
| 5 | 2 | Valentin Kruglyakov | Russia | 46.07 | Q, SB |
| 6 | 3 | Anderson Henriques | Brazil | 46.14 | Q |
| 7 | 3 | Peter Matthews | Jamaica | 46.21 | Q |
| 8 | 2 | Obakeng Ngwigwa | Botswana | 46.47 | q |
| 9 | 3 | Shane Victor | South Africa | 46.48 | |
| 10 | 1 | Yavuz Can | Turkey | 46.55 | PB |
| 11 | 1 | Willem de Beer | South Africa | 46.59 | |
| 12 | 3 | Hiroyuki Nakano | Japan | 46.61 | |
| 13 | 3 | Chang Pengben | China | 46.73 | |
| 14 | 1 | Dmitry Buryak | Russia | 46.84 | |
| 15 | 3 | Emmanuel Tugumisirize | Uganda | 46.91 | |
| 16 | 2 | Serdar Tamaç | Turkey | 46.98 | |
| 17 | 2 | Hideyuki Hirose | Japan | 47.07 | |
| 18 | 3 | Augusto Stanley | Paraguay | 47.16 | |
| 19 | 2 | Antoine Gillet | Belgium | 47.37 | |
| 20 | 3 | Nicklas Hyde | Denmark | 47.50 | |
| 21 | 2 | Michael Robertson | Canada | 47.52 | |
| 22 | 1 | Liemarvin Bonevacia | Netherlands Antilles | 48.26 | |
| | 2 | Rafith Rodríguez | Colombia | DNF | |
| | 1 | Thapelo Ketlogetswe | Botswana | DQ | FS |

### Final

| Rank | Lane | Name | Nationality | Time | Notes |
| | 3 | Marcell Deák-Nagy | Hungary | 45.50 | |
| | 8 | Peter Matthews | Jamaica | 45.62 | PB |
| | 6 | Sean Wroe | Australia | 45.93 | SB |
| 4 | 7 | Valentin Kruglyakov | Russia | 45.94 | PB |
| 5 | 5 | Brian Gregan | Ireland | 45.96 | PB |
| 6 | 2 | Joey Jacob Hughes | United States | 45.99 | |
| 7 | 4 | Anderson Henriques | Brazil | 46.01 | |
| 8 | 1 | Obakeng Ngwigwa | Botswana | 46.51 | |