 Parker is part of the Independent School League (ISL) athletic conference, and its team name is the Colonel named after the school's founder, Colonel Francis Wayland Parker.Parker's colonel mascot was "retired" before the 2017–18 school year, and a new eagle mascot named "The Eagle" was introduced as the new mascot as a way to better connect with younger students.The school has six sports during the fall season with eighteen interscholastic teams, three sports in the winter with fourteen teams, and five sports in the spring season with nineteen teams throughout the middle and high school.