 That October, he took the IBSF World Billiards Championship title.Karnehm turned professional in 1970, and was a challenger for the world title in 1971 and 1973, losing to Leslie Driffield and Rex Williams respectively.He was Chairman of the Billiards Association and Control Council when the Council nominated Leslie Driffield as the challenger to reigning champion Rex Williams for the professional Billiards Championship.