Beginning in 1974, the International Frisbee Disc Association became the regulatory organization for all of these sports. Led from 1975–1982 by Dan "Stork" Roddick, who also served as sports-marketing head for Wham-O, the IFA created an annual tournament at the Rose Bowl called the World Frisbee Championship, which drew over 50,000 fans and live TV coverage. This tournament served as a focal point for the more-developed game of Disc guts, invented in the 1950s, and the emerging popularity freestyle competition (1974) and disc golf (standardized in 1976 by the Professional Disc Golf Association).