In 2009, Igawa was invited to Spring training as a non-roster invitee, the only Yankee with a guaranteed contract in that position. On March 23, 2009, the Yankees reassigned Igawa to minor league camp. With the Scranton/Wilkes-Barre Yankees, Igawa posted a 10–8 record with a 4.15 ERA, with 105 strikeouts. The 10 wins, 105 strikeouts, and the 4.15 ERA were team bests for the 2009 year. On July 27, 2009, Igawa set a Scranton/Wilkes-Barre franchise record for most career wins, with a 2-1 victory over the Columbus Clippers.