Hall also ran the 2011 youth world-leading over 200 metres the same year.
Hall verbally committed to the University of Florida on December 5, 2011, and joined the Gators track team in the fall of 2012.
During his collegiate career, Hall was a 3-time NCAA champion, 10-time Outdoor All-American and 7-time Indoor All-American.
During his freshman year, at just 19 years old, Hall placed 3rd at the 2014 USA Outdoor Track and Field Championships in the 400m.
He went on to represent USA at the 2014 IAAF World Athletics Championships in the open 400m and as part of the 4X400m relay.
In 2016, he earned Olympic gold as lead-off for Team USA’s 4×400m relay at the 2016 Summer Olympics.
Earlier in 2016, he won the NCAA Men's Division I Outdoor Track and Field Championships title in the 400m.
Hall currently trains in Phoenix, Arizona.