St. Helena Catholic School is a member of the North Bay Catholic School Athletic League. Member schools include St. Apollinaris, Napa, St. Eugene's, Santa Rosa, St. Francis, Sonoma, Blue Oak, Napa, St. John, Napa, St. John, Healdsburg, St. Mary's, Ukiah, St. Rose, Santa Rosa, and Hanna Boys Center, Sonoma.

Catholic School League Philosophy:

The Philosophy of the Catholic school League is to provide students in the member schools the chance to learn and develop skills in the sports that are sponsored.

The games and events should always be centered around Christ and his love for children and their best interests. All league activies begin with a prayer and end with a handshake to remind us of our common roots.