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cinder track
A cinder track is a type of race track, generally purposed for athletics or horse racing, whose surface is composed of cinders. For running tracks, most cinder surfaces have been replaced by all-weather synthetic surfaces, which provide greater durability, more consistent results, and are less stressful on runners. The impact on performance as a result of differing track surfaces is a topic often raised when comparing athletes from different eras.
Synthetic tracks emerged in the late 1960s; the 1964 Olympics were the last to use a cinder track. 〔(Olympic.org ) - Tokyo 1964 - accessed 2011-08-09〕
The Little 500 bicycle race at Indiana University is still run annually on a cinder track.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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