 Boakye was first added to the Ajax-1 squad in the fall of 2005 by head-coach Danny Blind, as many Ajax defenders were injured or suspended at the time.The youngster made his first team début on 24 September 2005 in the Eredivisie home game against Roda JC.In total, Emmanuel Boakye had six appearances for Ajax in the Eredivisie, plus another four in the post-season Eredivisie play-offs and one in the Dutch Cup competition.