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The men's 100 metres was of one of 23 track events of the athletics at the 2004 Summer Olympics, in Athens. It was contested at the Athens Olympic Stadium, from August 21 to 22, by a total of 84 sprinters from 63 nations. In the first round, the first three runners from each of the ten heats, together with the ten next fastest runners from all heats (10×3+10=40), automatically qualified for the second round. In the second round, these forty runners competed in five heats, with the first three from each heat and the single next fastest runner (5×3+1=16) qualifying for the semifinals. In the semifinals, only the first four runners from each of the two heats advanced to the final (2×4=8). The final was the fastest and most disputed in Olympic history, with six runners covering the distance in 10.00 seconds or less (four of them under the 9.90 mark), and the gold and bronze medalist athletes separated by 0.02 seconds. In the final, the slowest to react was Justin Gatlin, still with the most powerful first steps, Gatlin led from the gun, with Kim Collins, the next slowest to react, also getting a typically fast start (typically in lane 1). A step behind, back from injuries, defending champion Maurice Greene, was fastest to react but running sideways in quicksand. He was joined by Francis Obikwelu and Shawn Crawford had a slight edge on the other competitors in the center of the track. Collins faded as Obikwelu, Crawford and Greene gained. Feeling his lead disappearing rapidly, Gatlin leaned early still maintaining the lead across the line. The tall Obikwelu perfectly timed his dip to clearly grab silver. Crawford's finish occurred two meters too late giving Greene another medal with the same time as his win four years earlier. Two years later, Gatlin beat Greene's world record only to have it erased as he was banned from the sport for four years for using performance-enhancing drugs. ==Qualification== The Olympic qualification period for the athletics ran from 1 January 2003 to 9 August 2004. For this event, each National Olympic Committee (NOC) was permitted to enter up to three athletes, provided they had run below 10.21 seconds during this period in IAAF-sanctioned meetings or tournaments. If a NOC had no athletes qualified under this standard, it could enter up to one athlete that had run below 10.28 seconds. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Athletics at the 2004 Summer Olympics – Men's 100 metres」の詳細全文を読む スポンサード リンク
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