Muscular giants from all of the United States — the best built amateur bodybuilder’s in the country — clashed in a mammoth battle of muscle and might on July 19, 1975, at the Los Angeles Embassy Auditorium.
Sensational Robin Robinson, in his first IFBB appearance, became the new American Bodybuilding Champion as he convincingly outscored 35 formidable competitors to win 1975 American Bodybuilding Championships.
Dennis Tinerino won the the 1975 Professional Mr Universe Title. Unbeknownst to the West Coast IFBB organizing committee and the judges, Dennis Tinerino had been suspended for a serious infraction against the IFBB back in New York in 1973 when he ignored his written agreement to not support any other bodybuilding organization. Much to the regret of everyone concerned, though Dennis was voted the winner, he was ruled ineligible to compete. The second place finisher, Bob Birdsong, has been officially awarded the 1975 IFBB Professional Mr. Universe title. Bob was in incredible shape for this show.
Source: MuscleMag International Annual (Annual 76)