Won 3 Olympic medals in 2016 in Rio - one gold in the 4x100 m relay, one silver in the 100 m and one bronze in the 200 m.
Competes in sprinting events, holding personal bests of 10.78 seconds for the 100-m dash, 21.99 seconds for the 200-m dash, and 7.14 seconds for the 60-m dash, as well as having a triple jump best of 13.09 m.
Competed for the University of Southern Mississippi and was a two-time NCAA champion, winning indoors and outdoors in 2011.
Attended Pisgah High School and began competing in track for the school.
Holds the University of Southern Mississippi records for the long jump and was also NCAA runner-up outdoors in 2012.