Robert Lunn, 18, of San Francisco, defeated Stephen Oppermann, 21, of South San Francisco, by 1 up in the final at the Haggin Oaks Municipal Golf Course, Sacramento, Calif.

Richard H. Sikes' bid to become the second three-time Champion ended in the quarter-final round when he lost to Dante Vicini, 49, a glass- worker from Ottawa, Ill. Vicini won on the 19th hole after being 2 down with two to play. Sikes had won 15 consecutive matches in the Championships of 1961-62-63.

Lunn, the 12th Californian to win the title, was four under par in 134 holes of match play. He defeated Jerry Yuke, of Sacramento, by 3 and 1 in the semi-final round. Oppermann beat Viccini, 4 and 3, in the other semi-final. John Joseph, of Hayward, Calif., was medalist with 141, three under par. Seventeen players engaged in a sudden death playoff for the last four positions in match play.

The playoff required two hours for extra holes. The longest match in the Championship's history took place in the first round when Clyde Sniffen, of Everett, Wash., defeated Hung Soo Ahn, of Honolulu, the 1962 runnerup, at the 25th hole. Toledo won the team Championship with a score of 443. The winning team consisted of Hubert Farmer, Andrew Holmes, and Leonard Pietras.