Physiology of marathons certain physiological characteristics of marathon runners exist. The differing efficiency of certain physiological features in marathon runners evidence the variety of finishing times among elite marathon runners that share similarities in many physiological characteristics. Aside from large aerobic capacities and other biochemical mechanisms, external factors such as the environment and proper nourishment of a marathon runner can further the insight as to why marathon performance is variable despite ideal physiological characteristics obtained by a runner. The first marathon ever run was an unintentional 25 mile trek performed by Pheidippides. Pheidippides was a Greek soldier who ran to Athens from the
Beijing Marathon Beijing Marathon The Beijing Marathon () is an annual marathon race of 42.195 km held in October in Beijing, People's Republic of China. The race was first held in 1981 and has been held every year since. Beijing Marathon is the first international sport event ever to be held in China. The race is also the first marathon race to use lottery system to allocate entries and the first full marathon race only in China. The race begins at Tiananmen Square and finishes at the National Olympic Sports Centre stadium. Beijing Marathon is now a full marathon only marathon race.