Lennie Boresch Jr. and Brian Kretzer are making the South Point Senior Shootout their personal playground through the first two days of the 5-day event at South Point Bowling Plaza in Las Vegas. In Monday’s Turbo Challenge, Boresch led qualifying — important because the qualifying rounds of the three daily events determine the finalists for the South Point Senior Shootout Championship — and Kretzer took the title. In Tuesday’s Logo Infusion Challenge, Boresch...