In 1945 , they shared the championship with Highland Park after the title game ended in a 7 - 7 tie .
In 1945 , they won outright in 1948 , when the Tigers beat Amarillo , 21 - 0 .
In 1945 , they shared the championship with Highland Park after the title game ended in a 7 - 7 tie , and won outright in 1948 , when the Tigers beat Amarillo , 21 - 0 .