In sports, the school's traditional rival was
Eastmoor High School. This was in part because when Walnut Ridge opened to students in 1961, more than half of its enrollment were former Eastmoor students. Walnut Ridge Students attended classes in the Eastmoor High School building in the afternoons while the Eastmoor students attended classes in the same building in the mornings. This continued for a few months until the new Walnut Ridge building received its certificate of occupancy. From the late 60s on, the winner of the annual football game between these two schools received the Victory Bell trophy to go along with their bragging rights. Since 2000 the biggest rival has been
Independence High School. Walnut Ridge fields varsity teams in baseball, boys' & girls' basketball, cheer-leading, boys' & girls' cross-country, drill team, football, boys' & girls' golf, boys' soccer, softball, tennis, boys' & girls' track&field and wrestling. ==Notable alumni==