 Eickhoff started 2013 with the Class A-Advanced Myrtle Beach Pelicans of the Carolina League, and was promoted to the Double-A Frisco RoughRiders of the Texas League during the season.He had the 3rd-lowest WHIP (1.17) and the 8th-lowest ERA (3.41) in the Carolina League, and his 11 wild pitches were 6th in the league.Eickhoff returned to Frisco in 2014, where he was named Pitcher of the Week, on May 5.