What's the lower age limit to join the Senior Golf Tour?
U.S. Senior Open U.S. Senior Open The U.S. Senior Open is one of the five major championships in senior golf, introduced in 1980. It is administered by the United States Golf Association (USGA) and is recognized as a major championship by both the PGA Tour Champions and the European Senior Tour. The lower age limit was 55 in 1980, but it was lowered to 50 for the second edition in 1981, which is the standard limit for men's senior professional golf tournaments. By definition, the event is open to amateurs, but has been dominated by professionals; through 2017, all editions have been won
Senior major golf championships majors, having commenced in the 1930s. The other four tournaments all date from 1980 or later, having been founded in the era when senior golf became a commercial success. This occurred when the first big golf stars of the television era, men such as Arnold Palmer and Gary Player, began to reach the relevant age. Unlike mainstream men's golf, the senior game does not have a globally agreed set of majors. The three majors recognised by the European Senior Tour are the Senior PGA Championship and the U.S. and British Senior Opens. However, the Champions Tour is much more dominant