With the Week 13 loss, the 49ers (6-6) fell from the No. 6 seed in the NFC to the No. 7 seed. Washington Football Team also is 6-6 after beating the Las Vegas Raiders on a last-minute field goal at Allegiant Stadium on Sunday. Washington holds the tiebreaker over the 49ers due to a better record within the conference.
The Los Angeles Rams routed the Jacksonville Jaguars to improve to 8-4, and they now have a two-game lead over the 49ers and Washington for the No. 5 seed in the NFC.
If the playoffs began next weekend, the 49ers would head to Lambeau Field to take on the No. 2 seed Green Bay Packers in the NFC wild-card round.
The 49ers led 17-7 early in the second quarter against the Seahawks, but couldn't hold on in a wild back-and-forth game in the Pacific Northwest. San Francisco got down to the goal line and had a chance to tie or even win the game on the final drive, but were unable to get into the end zone as Jimmy Garoppolo's fourth-and-goal pass was deflected and fell incomplete.
The 49ers now head to Cincinnati for a marquee matchup against Joe Burrow and the Bengals next Sunday. Kickoff is scheduled for 1:25 p.m. PT.
NFC playoff standings
No. 1: Arizona Cardinals (10-2)
No. 2: Green Bay Packers (9-3)
No. 3: Tampa Bay Buccaneers (9-3)
No. 4: Dallas Cowboys (8-4)
No. 5: Los Angeles Rams (8-4)
No. 6: Washington Football Team (6-6)
No. 7: San Francisco 49ers (6-6)
Outside looking in
No. 8: Philadelphia Eagles (6-7)
No. 9: Minnesota Vikings (5-7)
No. 10: Carolina Panthers (5-7)
No. 11: Atlanta Falcons (5-7)
No. 12: New Orleans Saints (5-7)
No. 13: New York Giants (4-8)
No. 14: Chicago Bears (4-8)
No. 15: Seattle Seahawks (4-7)
No. 16: Detroit Lions (1-10-1)