Skip Dresel played baseball and basketball at Napa High School. He was a first baseman on the 1947 and 1948 baseball teams, and helped the 1948 team gain a tie for the North Bay League championship. Dresel showed promise as a sophomore reserve on the 1946-47 North Bay League championship team. This team represented the North Bay League in the first high school invitational tournament. As a junior, Dresel earned second team all NBL honors at center. In his senior year, he was Captain of the North Bay League champion Indians. After losing their first 4 games, they won 17 out of their last 18, and went undefeated in the North Bay League. Dresel was the leading scorer on that team, and first team All North Bay League center. His play during his senior year earned Dresel a first-string place on the San Francisco Examiner All-Northern California team, the first Napa High player to be so honored. In the last half of the 1940s, Napa won or tied for three titles and narrowly missed a fourth. Dresel was the most outstanding player of that era and Coach Colledge’s favorite player. He was recruited to play basketball at U.C. Berkeley. A knee injury in his freshman year impaired his college career, but he did play as a junior and senior.