The final week of the NFL regular season is here, and while many playoff spots have already been clinched, the seeding, including the No. 1 seeds in both conferences, remains up in the air. The added weight of postseason implications brings heightened drama to several Week 18 matchups, including three with division titles directly on the line.

Here are the updated playoff scenarios heading into Week 18.

AFC

CLINCHED:
Denver Broncos (13-3) – AFC West
New England Patriots (13-3) – AFC East
Jacksonville Jaguars (12-4) – playoff berth
Buffalo Bills (11-5) – playoff berth
Houston Texans (11-5) – playoff berth
Los Angeles Chargers (11-5) – playoff berth

Denver Broncos (13-3) vs. Los Angeles Chargers (11-5)

Sunday, 4:25 p.m. ET, CBS

Denver clinches the AFC’s No. 1 seed, lone first-round bye and home-field advantage with:

1. Denver win OR

2. Denver tie + New England Patriots loss or tie OR

3. New England loss + Jacksonville Jaguars loss or tie

New England Patriots (13-3) vs. Miami Dolphins (7-9)

Sunday, 4:25 p.m. ET, FOX

New England clinches the AFC’s No. 1 seed, lone first-round bye and home-field advantage with:

1. New England win + Denver loss or tie OR

2. New England tie + Denver loss

Jacksonville Jaguars (12-4) vs. Tennessee Titans (3-13)

Sunday, 1 p.m. ET, FOX

Jacksonville clinches the AFC South division title and the AFC’s No. 1 seed, lone first-round bye and home-field advantage with:

1. Jacksonville win + Denver loss + New England loss

Jacksonville clinches the AFC South division title with:

1. Jacksonville win or tie OR

2. Houston Texans loss or tie

Houston Texans (11-5) vs. Indianapolis Colts (8-8)

Sunday, 1 p.m. ET, CBS

Houston clinches the AFC South division title with:

1. Houston win + Jacksonville loss

Baltimore Ravens (8-8) vs. Pittsburgh Steelers (9-7)

The winner of Sunday’s game in Pittsburgh between the Steelers and Ravens will advance to the postseason, while the loser will be eliminated. (Scott Taetsch / Getty Images)

Sunday, 8:20 p.m. ET, NBC

Baltimore clinches the AFC North division title with:

1. Baltimore win

Pittsburgh Steelers (9-7) vs. Baltimore Ravens (8-8)

Sunday, 8:20 p.m. ET, NBC

Pittsburgh clinches the AFC North division title with:

1. Pittsburgh win or tie

NFC

CLINCHED:
Seattle Seahawks (13-3) – playoff berth
San Francisco 49ers (12-4) – playoff berth
Chicago Bears (11-5) – NFC North
Los Angeles Rams (11-5) – playoff berth
Philadelphia Eagles (11-5) – NFC East
Green Bay Packers (9-6-1) – playoff berth

San Francisco 49ers (12-4) vs. Seattle Seahawks (13-3)

Saturday, 8 p.m. ET, ESPN/ABC

San Francisco clinches the NFC West division title and the NFC’s No. 1 seed, lone first-round bye and home-field advantage with:

1. San Francisco win

Seattle clinches the NFC West division title and the NFC’s No. 1 seed, lone first-round bye and home-field advantage with:

1. Seattle win or tie

Carolina Panthers (8-8) vs. Tampa Bay Buccaneers (7-9)

Saturday, 4:30 p.m. ET, ESPN/ABC

Carolina clinches the NFC South division title with:

1. Carolina win or tie OR

2. Atlanta Falcons win

Tampa Bay clinches the NFC South division title with:

1. Tampa Bay win + Atlanta Falcons loss or tie