The Pioneers' major conference affiliations changed in July 2013. Denver moved its primary affiliation from the Western Athletic Conference to The Summit League, hockey moved from the Western Collegiate Hockey Association to the National Collegiate Hockey Conference, and men's lacrosse moved from the ECAC Lacrosse League to the Big East Conference. The women’s lacrosse team also moved from the Mountain Pacific Sports Federation (MPSF) to the Big East Conference in 2017 and in 2019 they reached the Elite 8 (quarterfinals) of the NCAA tournament. In addition, the women's gymnastics team joined the newly formed Mountain Rim Gymnastics Conference in 2013 and later moved to the Big 12 Conference in July 2015.