Cubs are at home, I'd say them.
I thought I read that the Rockies are 35-17 at home in their last 35+17 () games there or something like that. The exact number may be different, but they've been scorching hot there. Plus they're 16 of their last 17 overall. This game should get into the bullpens somewhat early and the Rockies have the advantage there. In Jimenez's last start, he carried a no hitter into the 6th, I believe, and that was a playoff atmosphere as a win clinched a wildcard tie.