The World Bowling Tour, a major professional tour, unites bowlers from selected major professional and amateur organizations through a series of events organized by World Bowling. The World Bowling Tour's marquee event, the WTBA World Championships, attracts bowlers from over 50 countries. World Bowling Tour events include all the PBA Tour major tournaments. As a stepladder tournament, the season-ending World Bowling Tour Finals features the top three men, and top three women in the World Bowling Tour points standings.