Robert W. Duden (September 5, 1920 – March 22, 1995) was an American professional golfer who played on the PGA Tour in the 1950s and 1960s.
A lifelong resident of Portland, Oregon, Duden compiled a remarkable record in sectional golf competition. He won over fifty tournaments in a 40-year career that included 23 Pacific Northwest Section events. These include a record seven wins of the Pacific Northwest Senior PGA Championship; he won the Oregon Open a record eight times. In competition on the PGA Tour, Duden's best showings were three runner-up finishes between 1959 and 1964. His best finish in a major championship was T-46 at the 1954 U.S. Open.
Duden invented and patented the croquet style putter, which he named "The Dude." When other well-known professionals like Sam Snead adopted this revolutionary putting technique, its popularity began to surge; however, the USGA banned it when traditionalists like Bobby Jones objected.
Duden had 22 holes-in-one during his career. In his later years, he worked as a teaching pro at Glendoveer Golf Course, where an annual tournament bears his name.
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