John Mulcahy 7 May 2019 Physiology, Sport Science, Performance, Athletics SSA Blog: Marathon Music Session John Mulcahy 7 May 2019 Physiology, Sport Science, Performance, Athletics In October 2019, Eluid Kipchoge will attempt to break one of the great barriers in men’s athletics, the two-hour marathon. Supported by INEOS, Kipchoge plans to better his time of 2:00:25 set during the Nike Breaking 2.0 project in May 2017.