The Seahawks defense stopped the Rams on the one-yard line on the last play of the game to secure a 14-9 victory at the Edward Jones Dome.
Russell Wilson was 10-of-18 for 139 yards and two touchdowns including an 80-yard connection with Golden Tate.
Tate finished with five receptions for 93 yards and he hauled in both scores for Seattle, who is 7-and-1 for the first time in franchise history.
Rams defensive end Robert Quinn had three sacks, all in the first half and Zac Stacy ran for a career-high 134 yards.
St. Louis has dropped their last two to fall to 3-and-5.
By: Mike Plourde – for Great Lakes Radio Sports