/teamtitleist/ca/b/weblog/posts/spieth-finishes-solo-second-at-the-open-with-new-t100-irons PGA TOUR | Open Championship Titleist was the most played golf ball (109/70%), driver (44/28%), iron (39/25%) wedge (241/41%) at the 149th Open Championship, continuing its lead in each category for the 2020-21 PGA TOUR season. Titleist is alsoen-USTelligent Community 10