Auburn Doubledays
Stevenson was drafted by the Washington Nationals in the second round of the 2015 Major League Baseball draft. He signed with the Nationals and made his professional debut that year with the Gulf Coast Nationals. He was later promoted to the Auburn Doubledays and Hagerstown Suns. In 55 games between the three teams, he batted .308/.363/.379 with one home run, 25 RBIs, and 23 stolen bases.