Claar turned professional in 1981.[1] He played on the PGA Tour from 1986 to 1998. He was selected as the PGA Rookie of the Year in 1986.[3] His best finish was a T-2 at the 1991 AT&T Pebble Beach National Pro-Am. He then played primarily on the Nationwide Tour from 1999 to 2002. His best finishes on this tour were a pair of T-2s in 2002, a playoff loss at the Hershey Open and T-2 at the Utah Classic.
Outside of the United States, Claar had success on the Asia Golf Circuit. In 1989 he claimed the Order of Merit title having won twice during the season, at the Hong Kong and Thailand opens.[4]