Adam Eaton graduated from Kenton Ridge High School in Springfield, OH. He attended Miami University on a college baseball scholarship while also playing for the Miami RedHawks Baseball team in the Mid-American Conference. Eaton was drafted by the Arizona Diamondbacks in the 19th round of the 2010 Major League Baseball Draft, with the 571st overall selection.
In 2010 and 2011, Eaton had a .340 batting average with the Diamondbacks’ minor league affiliates. Eaton was named a Pioneer League All-Star outfielder in 2010, and a California League All-Star in 2011. In 2011, he batted .318 with 145 hits and 72 walks, good for a .434 OBP, which was the fourth best OBP in minor league baseball. Adam made his MLB debut in 2012 with the Arizona Diamondbacks, and played with them through the 2013 season.
On December 10, 2013, the Diamondbacks traded Eaton to the Chicago White Sox. He currently plays centerfield for the Washington Nationals and has been with them since 2016.