Senior Team USA’s Lennie Boresch Jr. and Sharon Powers won silver medals and Lucy Sandelin bronze in singles on Monday at the 2018 Pan American Bowling Confederation Senior Championships at Let’s Bowl in Calgary, Canada. For the men, Joe Ciach of Canada won the gold with 1,389 on games of 226, 213, 194, 242, 279 and 235. Boresch, a USBC Hall of Famer from Kenosha, totaled 1,377 on games of 251, 195, 244, 214, 237 and 236. Salvador Suarez of Mexico earned the bronze with 1,341 on...