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
Atlanta Marathon December 15, 2015, the race was acquired by Atlanta Track Club, who had previously operated the Atlanta Marathon until its final running in 2013. They have operated the race since 2016. For 2019, the race has been renamed the Publix Atlanta Marathon and the course has been changed. In 2020, Atlanta will host the U.S. Olympic marathon trials for the 2020 Summer Olympics; the course will be a unique one from the Atlanta Marathon, but the events will be held in the same weekend. From 2007 to 2018, when the race was known as the Georgia Marathon, the marathon course