Andrew Shaw also scored for Chicago, which was coming off a 6-0-1 homestand and improved to 9-0-2 on the road. The Blackhawks, who have won seven in a row overall, have earned 37 out of a possible 40 points this season with a 17-0-3 start.
Chicago, playing its first road game in 18 days, has won four in a row against St. Louis, which has lost three of four.
Crawford was pulled after making six saves in the first period. He missed four games earlier this month with an upper-body injury and returned to the lineup Sunday, making 28 stops in a 1-0 win over Columbus.
Stay Connected
NHL.TV™
NHL GameCenter LIVE™ is now NHL.TV™.
Watch out-of-market games and replays with an all new redesigned media player, mobile and connected device apps.
Introducing the new official NHL App, available for iPhone, iPad and Android smartphones and tablets. A host of new features and improved functionality are available across all platforms, including a redesigned league-wide scoreboard, expanded news coverage, searchable video highlights, individual team experiences* and more. The new NHL App on your tablet also introduces new offerings such as 60fps video, Multitasking** and Picture-in-Picture.
*Available only for smartphones
** Available only for suported iPads