The Cardinals had one hit and one runner in scoring position the first three innings against Marcum before breaking through with three hits and a botched rundown play to take a 2-0 lead in the fourth.
The Rockies have been shut out for 26 consecutive innings since Carlos Gonzalez hit a first-inning sacrifice fly against the Yankees on Thursday, and have had just one runner in scoring position the first two games of the series.
The new position of "runner" has been created to do things like hand out cups and sauce packets, and fetch juice boxes for Happy Meals, freeing up the order taker to focus on the customer.