PlayDecoded
Menu

Chicago Bears at Buffalo Bills

Buffalo Bills vs Chicago Bears head-to-head

NFLWeek 15 • regular • 2026
Scheduled
Bills logo
Bills
Buffalo
0
vs
Bears logo
Bears
Chicago
0
BUF 59%41% CHI
Prediction Confidence:
High

Buffalo Bills 59% to win. The top 2 signals favoring Bills:

  • ELO Rating. Bills ELO 1631 vs Bears ELO 1531 (diff: +100)
  • Home Field Advantage. Bills are 2-1 at home this season; Bears are 2-1 on the road

What would change the call

Win probability if a leading factor were even

  • If the rating edge were neutral: BUF 55% (−4)
  • If the home-field edge were neutral: BUF 56% (−3)

Make Your Prediction

Sign in to make predictions

View leaderboard to see rankings

VenueHighmark Stadium
Orchard Park, NY

Team Comparison

Head-to-head snapshot based on our model inputs

Bears (away)
Bills (home)
41%
Win probability
59%
0
High-impact factors
0
0
Players ruled out
0

Game Preview

Bears at Bills

The Bears visit the Bills at Highmark Stadium in Orchard Park, NY in NFL regular season Week 15 action.

Our model gives the Bills a 59% chance of winning, making this a competitive contest. For the Bears to win, several key factors would need to swing their way.

Key factors driving this prediction:

  • ELO Rating favors the Bills (low): Bills ELO 1631 vs Bears ELO 1531 (diff: +100)
  • Home Field Advantage favors the Bills (medium): Bills are 2-1 at home this season; Bears are 2-1 on the road
  • Turnover Differential is neutral: Bills turnover differential (+0) vs Bears (+0)
Bills59%

is favored to win

Key Factor
ELO Rating
Favors BUF

Key Factors

What's driving the win probability for this game

  • ELO RatingFavors Buffalo Bills
  • Home Field AdvantageFavors Buffalo Bills
  • Turnover DifferentialNeutral
  • Head to HeadNeutral
  • Recent FormNeutral
  • InjuriesNeutral
Sign in to see factor scores, charts, and what-if simulations

What's Driving This Game

Each factor's contribution to the final win probability

CHI
BUF
ELO Rating
Home Field Advantage
Favours CHI|Favours BUF

Premium feature: factor breakdown

Start 14-day free trial →

Understanding the win probability calculation

3 factors not shown (insufficient data)

Model version: 1.1.0 • Calculated: 10/25/2026, 10:36:22 AM

Get the weekly model report card

Every Monday: last week's hit rate, Brier score, and the model's biggest misses. One email a week.

Key Players

Bears

Tyson BagentQB
Miller MossQB
Case KeenumQB
Caleb WilliamsQB
Scotty MillerWR

Bills

Kyle AllenQB
Josh AllenQB
Shane BuecheleQB
Skyler BellWR
Joshua PalmerWR

More games

Next and previous games for each team, plus others from this week. Win probabilities use the same display assessment as the game page.

Buffalo Bills

Chicago Bears

Other Week 15 games

Frequently Asked Questions

Bills has a 59% win probability, while Bears has a 41% win probability based on our analysis.

Our model considers weather conditions, offensive and defensive efficiency, rest days, injury impact, and historical performance.

This game is being played at Highmark Stadium in Orchard Park, NY.

View all NFL games