DENVER – On a perfect evening in Lower Downtown Denver, the Colorado Rockies offense played a nearly perfect game, driving the ball all around the gorgeous confines of Coors Field like they were hitting off a tee. They greeted the San Francisco Giants with an explosion of hits, making a statement early in this four-game divisional series. Yes, the Giants are reeling this season, and no, the Rockies aren’t going to let up or feel bad for them. But the bullpen let San Francisco all the way back into the game, surrendering eight runs over the final three innings.