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Wk 15 · 2026

Chicago Bears at Buffalo Bills — Sat, Dec 19

Sat, Dec 19 · Highmark Stadium, Orchard Park, NY · CBS

Weather

No forecast yet. This one is 113 days away. Forecasts reach about 16 days ahead, so this fills in nearer the game. A seasonal average printed here would look exactly like a forecast, which is why there is not one.
NFC North · no games yet
at
8:20pET
BUF -3.5 · total 51.5 DraftKings
Ratings differential BUF by 5.6
AFC East · no games yet

What is at stake

An interconference game, NFC against AFC. It counts in both overall records — which is what seeding is settled on first — and in neither team’s division or conference record.

What the ratings imply

The differential above is arithmetic on two published numbers: The Gridiron King’s 2026 final efficiency ratings, plus 1.7 points of home field. It is not a projection, a value, an edge or a lean, and nothing on this site compares it with the betting line to tell you one is better. Until 2026 games are played it is last season’s measurement of two rosters that have been through a draft and a free-agency window since.

Efficiency · 2026 ratings

Bears: +1.0#16
Efficiency margin
Bills: +4.9#2
Bears: +1.1#11
Offense
Bills: +4.6#1
Bears: -0.1#17
Defense
Bills: +0.2#14
Bears: 25.9
Points / game
Bills: 28.3
Bears: 24.4
Points allowed / game
Bills: 21.5
Opponent-adjusted ratings from The Gridiron King’s 2026 final numbers. Bars share a scale within each row, so the two lengths are comparable; the brighter side is the better of the two, and a longer bar is the better number — including the rows where a lower figure is the good one. Pace is the exception: it is how fast a team plays, not how well, so neither side is lit and a longer bar there means only more plays.

Team stats

The box-score store these rows are built from has not been produced for this league yet, so no preview carries points and yards for and against. The form, trend and series blocks below are built from this site’s own files and are not affected.

Bears form

No completed games on record.

Bills form

No completed games on record.

Bears this season

No graded games yet this season. Lines are captured before kickoff and graded when a game goes final, so these records start at Week 1.

Bills this season

No graded games yet this season. Lines are captured before kickoff and graded when a game goes final, so these records start at Week 1.
Lines are captured from ESPN's board before kickoff and locked at kickoff, so an in-play price cannot overwrite the number a game is graded against.

Common opponents · 6

OpponentBearsBills
Vikings
NFC
vs Wk 2 · scheduled previewat Wk 9 · scheduled preview
Jets
AFC
vs Wk 4 · scheduled previewat Wk 10 · scheduled preview
Packers
NFC
at Wk 5 · scheduled previewat Wk 14 · scheduled preview
Patriots
AFC
vs Wk 7 · scheduled previewvs Wk 4 · scheduled preview
Lions
NFC
at Wk 12 · scheduled previewvs Wk 2 · scheduled preview
Dolphins
AFC
at Wk 14 · scheduled previewvs Wk 11 · scheduled preview
Open these two in the comparison tool for every shared and unshared opponent.

Series history · 2006–2026

Since 2006, Bears leads 3–2 · Bills won the last one
5 meetings in 2006–2026 · average margin 8.6 points toward Bears
Yr DateResultSiteWon
20222022-12-24Bills 3513 Bearsat CHIBills
20182018-11-04Bears 419 Billsat BUFBears
20142014-09-07Bills 2320 Bearsat CHIBills
20102010-11-07Bears 2219 Billsat BUFBears
20062006-10-08Bills 740 Bearsat CHIBears

Bears leaders 2025 regular season

PassingCaleb Williams QB #18330/568, 3942 YDS, 27 TD, 7 INT
Tyson Bagent QB #173/4, 47 YDS
RushingD'Andre Swift RB #4223 CAR, 1087 YDS, 9 TD
Kyle Monangai RB #25169 CAR, 783 YDS, 5 TD
Caleb Williams QB #1877 CAR, 388 YDS, 3 TD
ReceivingColston Loveland TE #8458 REC, 713 YDS, 6 TD
DJ Moore WR #250 REC, 682 YDS, 6 TD
Rome Odunze WR #1544 REC, 661 YDS, 6 TD
Luther Burden III WR #1047 REC, 652 YDS, 2 TD
Defense
TacklesTremaine Edmunds LB #49112
Kevin Byard S #3193
Jaquan Brisker S #393
SacksMontez Sweat DE #9810
Gervon Dexter Sr. DT #996
Austin Booker DE #944.5
InterceptionsKevin Byard S #317
Nahshon Wright CB #265
Tremaine Edmunds LB #494

Bills leaders 2025 regular season

PassingJosh Allen QB #17319/460, 3668 YDS, 25 TD, 10 INT
Mitchell Trubisky QB #1025/35, 313 YDS, 4 TD
RushingJames Cook III RB #4309 CAR, 1621 YDS, 12 TD
Josh Allen QB #17112 CAR, 579 YDS, 14 TD
Ray Davis RB #758 CAR, 275 YDS
ReceivingKhalil Shakir WR #1072 REC, 719 YDS, 4 TD
Dalton Kincaid TE #8639 REC, 571 YDS, 5 TD
Dawson Knox TE #8836 REC, 417 YDS, 4 TD
Keon Coleman WR #038 REC, 404 YDS, 4 TD
Defense
TacklesCole Bishop S #2485
Jordan Poyer S #2170
Matt Milano LB #5867
SacksGreg Rousseau LB #157
Joey Bosa DE #975
Matt Milano LB #583.5
InterceptionsCole Bishop S #243
AJ Epenesa DE #572
Christian Benford CB #472
These are regular-season totals for the season named on each card — the players who led that team that year, taken from ESPN's team leaders. That list is keyed to the season, not to today's roster, so a leader who has since signed elsewhere, been traded or retired still appears against the year he earned it; the roster pages and the depth chart on each team page are where the current squad is. A team switches to this season's numbers once it has played a game.