Career
He played varsity tennis while attending University of California, Los Angeles in the late 1960s and had success in doubles with Steve Tidball. The pair were runners-up to Bob Lutz and Stan Smith for the National Collegiate Athletic Association Division 1 doubles title in 1968. He twice earned All-American honours, in 1968 and 1969.
After coming back from two sets down to defeat Miguel Olvera in the first round of the 1969 United States Open, Barth made it as far as the fourth round, which would remain his best Grand Slam performance.
Competing professionally from 1969, Barth went on to make two Grand Prix finals, both in doubles. A finalist at the Wimbledon All England Plate in 1970, Barth also had noted performances at the United States Open in the 1970s.
He has lived in Charleston, South Carolina since retiring from professional tennis and is the Director of Tennis at the Kiawah Island Golf Resort.