Calvin Smith Jr. (born December 10, 1987) is an American athlete who specialises in the 200m and 400m. He is the son of former world record-holder, world champion, Olympic medalist and National Track & Field Hall of Famer, Calvin Smith Sr. He is an All-American for University of Florida. He's earned 18 All-America titles, the most in University of Floridatrack and field history. He was also a part of the 2010 NCAA indoor national championship team and was an alternate in the 2008 Beijing Olympic Games on the United States 4x400 relay although he did not compete.[1][2][3]
He won gold medals in the relay at three consecutive World Indoor Championships starting in 2012.