Lynch carried the ball 20 times and became Seattle's first 1,000-yard rusher since Shaun Alexander in 2005.
Lynch has been the NFL's most productive running back since Week 9. He has 706 yards, 133 ahead of Tennessee's Chris Johnson, has touchdowns in nine straight games and is 31 yards shy of his third-career 1,000-yard season. It would be his first since 2008.
The Bears are allowing 103.3 yards on the ground during its three-game skid after allowing 66.8 during the five-game winning streak that preceded it.