Athletics at the 2008 Summer Olympics – Men's 200 metres runners (q) qualified for the second round. Round 2 was held on 18 August. First 3 in each heat(Q) and the next 4 fastest(q) advance to the Semifinals. Semifinals were held on 19 August. First 4 in each heat (Q) advance to the Final. Wind: -0.9 m/s Athletics at the 2008 Summer Olympics – Men's 200 metres The Men's 200 metres at the 2008 Summer Olympics took place on 18–20 August at the Beijing National Stadium. The qualifying standards were 20.59 s (A standard) and 20.75 s (B standard). Usain Bolt set a new world record of 19.30 s in
Athletics at the 2008 Summer Olympics – Men's 400 metres period (1 January 2007 to 23 July 2008). NOCs were also permitted to enter one athlete providing he had met the B standard (45.95) in the same qualifying period. The first round was held on 18 August. The first three runners of each heat (Q) plus the next three overall fastest runners (q) qualified for the semifinals. Athletics at the 2008 Summer Olympics – Men's 400 metres The men's 400 metres at the 2008 Summer Olympics took place on 18–21 August at the Beijing National Stadium. The defending champion was Jeremy Wariner, who also won World Championship titles in 2005