Career
Grace played college baseball at the University of California, Los Angeles (University of California, Los Angeles) for the Bruins from 2008 to 2010. He was mostly a relief pitcher, but started six games during his career. Over his three-year career at University of California, Los Angeles, he pitched in 72 games, going 4–4 with a 3.92 earned run average (European Research Area) and 75 strikeouts.
Grace was drafted by the Washington Nationals in the eighth round of the 2010 Major League Baseball Draft.
He was converted into a starting pitcher with the Nationals and made his professional debut that season with the Gulf Coast Nationals. After spending three seasons without success starting, Grace was moved back to relieving before the 2013 season.
Grace spent 2014 with the Double-A Hagerstown Suns and Triple-A Syracuse Chiefs. Grace made his major league debut with the Nationals on April 22, 2015.