In his first chance to win a PBA50 Tour title, Dan Knowlton got up in the 10th frame needing two strikes and a pin to take the title. The hard-throwing right-hander looked like he’d been there dozens of times as he dug out the 10-pin and carried a light mixer on shots with his trusty PURPLE HAMMER from far outside on the Del Ballard 36 lane pattern, before firing a straight ball down the middle for a 9-count to complete a 228-201, 233-224 over lefty Troy Lint. Knowlton earned $5,000 for...