Pittsburgh manager Clint Hurdle put Adam Frazier in the leadoff spot on Monday for the first time since early June. It was a salient move by the former Jackson Mets skipper. Ex-Mississippi State standout Frazier went 5-for-6, scored three runs, drove in a pair and etched his name in the baseball record book with four doubles. And the Pirates, who also got three homers from Josh Bell, beat the first-place Chicago Cubs 18-5 at PNC Park. Frazier was in a 2-for-18 funk before Monday’s breakout, which might lead to more opportunities at the top of the order. He joins an impressive list of players with four two-baggers in a nine-inning game. Among the others to achieve the feat are Lou Boudreau, Joe Medwick, Orlando Cepeda, Billy Williams, Kirby Puckett, Albert Belle and Jeff Bagwell. Frazier has become the Pirates’ regular second baseman this season with the departure of Josh Harrison, and the lefty-hitting four-year veteran is batting .266 with three homers, 21 RBIs and 41 runs. The Pirates are hanging around in a crowded race in the National League Central.