The conference unveiled the University of Denver (DU) as its 10th member on November 27, 2012, and the Pioneers joined in July 2013. While Denver is slightly outside The Summit's current Midwestern base, the city's status as a major air hub seemingly minimized travel issues for the other members. With Denver among the eight of ten WAC members switching to other conferences, that league searched for new members. UMKC announced on February 7, 2013, that it would be one of six schools joining the WAC for the 2013-14 season, dropping the Summit league back to nine member schools. Membership fell to eight schools on May 7, 2013, when Oakland announced that it was joining the Horizon League. Eight of the nine then-current Horizon League programs were former Summit League members with Oakland's move (the Horizon has since added two more members that were never in The Summit League, Northern Kentucky and Robert Morris, as well as another former Summit member in Purdue Fort Wayne).