Invitational: These events are similar to the regular ones, but have a slightly smaller field and do not follow the normal PGA Tour exemption categories. Invitational tournaments include the Charles Schwab Challenge, the Arnold Palmer Invitational, the RBC Heritage, the Memorial Tournament. The tournaments usually have an association with a golf legend, or in the case of the RBC Heritage, a famous course. The table below illustrates some of the notable features of the exemption categories for these events:
Due to the multiplicity of names, there is often confusion as to what the PGA Tour organization does and does not run. Of the events in the PGA Tour schedule, it does not run any of the four major championships (the Masters Tournament, the U.S. Open, The Open Championship and the PGA Championship), or the Ryder Cup. The PGA of America, not the PGA Tour, runs the PGA Championship, the Senior PGA Championship, and co-organizes the Ryder Cup with Ryder Cup Europe, a company controlled by the PGA European Tour. Additionally, the PGA Tour is not involved with the women's golf tours in the U.S., which are mostly controlled by the LPGA. The PGA Tour is also not the governing body for the game of golf in the United States; this, instead, is the role of the United States Golf Association (USGA), which organizes the U.S. Open. What the PGA Tour does organize are the remaining 43 (in 2009) week-to-week events, including The Players Championship and the FedEx Cup events, as well as the biennial Presidents Cup. It also runs the main tournaments on five other tours: PGA Tour Champions, the Korn Ferry Tour (formerly known as Web.com Tour), PGA Tour Canada, PGA Tour China, and PGA Tour Latinoamérica.
Most members of the tour play between 20 and 30 tournaments in the season. The geography of the tour is determined by the weather. It starts in Hawaii in January and spends most of its first two months in California and Arizona during what is known as the "West Coast Swing" and then moves to the American Southeast for the "Southern Swing." Each swing culminates in a significant tour event. In April, tour events begin to drift north. The summer months are spent mainly in the Northeast and the Midwest, and in the fall (autumn) the tour heads south again.