Tripp won the 1975 and 1976 United States Automobile Club (USAC) National Midget championships. He stayed on the national tour for several more years before he started racing in the Western States series, on the West Coast. He consistently placed first or second in the series points, winning championships in 1983, 1985, 1987, 1988, 1990, 1991 and 1992. He reached his 100th win May 2, 1998 at Ventura Raceway."Sleepy Tripp Scores Number 100", motorsport.com, retrieved January 16, 2007 Sleepy sits on top of the Western States feature list with 104 wins.
