After three days of defending champion Mika Koivuniemi leading the Suncoast PBA Senior U.S. Open presented by Storm, the top of the leaderboard underwent a major shuffling in Thursday’s fourth and final round of qualifying. Norway’s Tore Torgersen took a narrow lead over Pete Weber, Norm Duke jumped to third, Koivuniemi fell to fourth, and Steve Smith moved into fifth as those five players separated themselves from the rest of the field by more than 100 pins heading into the final...