sentences:  During a dispute between the UMB and BWA (Billiards World Cup Association) the UMB decided not to organize the championship between 1988-1991.Instead the overall winner of the World Cup was announced as also the world champion.From 1928 to 1958 and from 1985 to 1987, matches were played as a single frame with a run to 50 points (or 60 points between 1960 and 1984).