Iowa right-hander Jake Woodford elected free agency and was released.
Iowa catcher Caleb Knight and right-hander Tommy Romero were activated off the Development List.
Right-hander Tyler Schlaffer and outfielder Andy Garriola were promoted to Double-A Knoxville from High-A South Bend.
Shortstop Alexis Hernandez was promoted to Low-A Myrtle Beach from the ACL Cubs. Alexis is the little brother of South Bend shortstop Cristian Hernandez.
Iowa Cubs
Riley Martin got the emergency start after scheduled starter Jake Woodford was released.