 Under the management of Brian Little, Tranmere finished 18th in League One in the 2005–06 season, but Greenacre himself finished top scorer with 18 goals in 49 games for the club.This included a hat-trick against Yeovil Town on 28 December and two goals against Oldham Athletic in August.In 2006–07 under Ronnie Moore when Greenacre again finished top scorer, this time with a total of 19 goals, and signed a two-year extension to his contract at Prenton Park.