Edina High School is a member of the Lake Conference of the Minnesota State High School League. Previously a member of the Lake Conference and the Classic Lake Conference, the school joined the new Lake Conference in 2010. Edina claims 190 athletic high school state championships, a state record, with most of them earned in tennis, swimming, and boys hockey. In 2000, the school was recognized as the first school in the state of Minnesota to win more than 100 state championships. In 2019, the record was broken for most state championships won in a school year as Edina claimed 8 titles. The boys' hockey team has won a state-record thirteen championships (including three titles by Edina East), eight under Willard Ikola alone. Edina held the record for most consecutive state championships in girls tennis with fifteen from 1978 to 1992. In 2012, Edina broke their own record by winning nineteen straight state championships from 1997 to 2015. Edina was seeded as the underdog in the 2015 state tournament, but proved their greatness as they defeated Prior Lake in the finals. Edina girls tennis is often referred to as "EGT".