The Academic Junior High Decathlon competition involves students from grades 5 through 8. This competition is comprised of ten events, two collaborative team efforts - a Logic Quiz with 20 rigorous thinking problems and a Super Quiz with 50 multiple choice questions, on five broad academic themes. The remaining eight events test knowledge of the Roman Catholic doctrine, English, Literature, Science, Mathematics, Current Events, Social Studies and Fine Arts (Art and Music). Awards are given for individual and team performance, and the winning school team from each geographic diocese is invited to compete in the National Championship.

During the 2022-2023 school year, more than 25 Catholic elementary schools throughout the Archdiocese of Los Angeles met at Bishop Alemany High School for an academic event that paralleled an athletic competition. Drawing in hundreds of students, parents, and supporters, our Acadmic junior High Decathlon competed and two of our students placed in two different events, one placed 2nd in Current Events and the other placed 1st in Fine Arts, and both were invited to compete in the National Championship.

Sacred Heart School values the each student and we strive not only to live the Gospel values and develop Christ-centered relationships, but to educate the whole child and to excel academically. Our Junior High Academic Decathlon team is extremely competitive and we enter every competition not just to compete, but to win in every event possible.