Hart has continued throwing into the Masters age divisions. On June 20, 2015, he set the American M65 record in the hammer throw,[1] surpassing his own previous mark and that of former rival Ed Burke.
Note 1: In 1888 both the NAAAA and the AAU held championships
OT: The 1920, 1928, 1932, 1992, 1996, 2000, 2004, 2008, 2012 and 2016 championships incorporated the Olympic Trials, otherwise held as a discrete event.
2020 OT: The 2020 Olympic Trials were delayed and held in 2021 due to the COVID-19 pandemic.