Jack Sock has won four career ATP singles titles and 17 doubles titles and has career-high rankings of world No. 8 in singles and world No. 2 in doubles.

Sock has won four major doubles titles: one in mixed doubles at the 2011 US Open and three men's doubles titles: 2014 Wimbledon, 2018 Wimbledon, and 2018 US Open. Jack also won the 2018 ATP Finals men's doubles title partnering with Mike Bryan. At the 2016 Rio Olympics, Sock won both a gold medal in mixed doubles and a bronze medal in men's doubles.

In singles, Jack as a junior played his tennis in the Missouri Valley Section and is a former junior US Open champion.