Cubs Game Notes For Tuesday @ San Francisco
*The Cubs are 31-18 in one-run games this year, their best mark since 1915.
* The Cubs are 17-4 (.810) in August in large part due to their ability to string together hits in clutch spots this month. They are hitting .295 with runners is scoring position this month.
* The San Francisco Giants trail the Cubs by 6.5 games in the wild-card race, and will look to pick up ground without outfielder Hunter Pence. The Giants have been a different team without Pence on the field this season. They are 32-41 without him, 34-17 with him.
* Jake Arrieta has posted a quality start in each of his last 12 games.
* Matt Cain has pitched well in his career against the Cubs with a 2.72 ERA.