San Francisco 49ers at Arizona Cardinals
Arizona Cardinals vs San Francisco 49ers head-to-head
San Francisco 49ers 57% to win. The top 2 signals favoring 49ers:
- ELO Rating. Cardinals ELO 1412 vs 49ers ELO 1596 (diff: -184)
- Home Field Advantage. Cardinals are 0-2 at home this season; 49ers are 2-0 on the road (divisional game, reduced advantage)
What would change the call
Win probability if a leading factor were even
- If the rating edge were neutral: SF 50% (−7)
- If the home-field edge were neutral: SF 55% (−2)
Team Comparison
Head-to-head snapshot based on our model inputs
Game Preview
49ers at Cardinals
The 49ers visit the Cardinals at State Farm Stadium in Glendale, AZ in NFL regular season Week 18 action.
Our model gives the 49ers a 57% chance of winning, making this a competitive contest. For the Cardinals to win, several key factors would need to swing their way.
Key factors driving this prediction:
- ELO Rating favors the 49ers (medium): Cardinals ELO 1412 vs 49ers ELO 1596 (diff: -184)
- Home Field Advantage favors the 49ers (low): Cardinals are 0-2 at home this season; 49ers are 2-0 on the road (divisional game, reduced advantage)
- Turnover Differential is neutral: Cardinals turnover differential (+0) vs 49ers (+0)
is favored to win
Key Factors
What's driving the win probability for this game
- ELO RatingFavors San Francisco 49ers
- Home Field AdvantageFavors San Francisco 49ers
- Turnover DifferentialNeutral
- Head to HeadNeutral
- InjuriesNeutral
- Offensive EfficiencyNeutral
What's Driving This Game
Each factor's contribution to the final win probability
Premium feature: factor breakdown
Start 14-day free trial →Understanding the win probability calculation
3 factors
1 factor
1 factor
1 factor
Other
Medium impact1 factor
3 factors not shown (insufficient data)
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Key Players
49ers
Cardinals
Learn About Our Analysis
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NFL Win Probability
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Home Field Advantage
How playing at home affects NFL win probability
NFL Weather Impact
How weather conditions influence NFL games and predictions
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.
Arizona Cardinals
- Previous game73%LAR win probability
- Next game
Next game not scheduled yet
San Francisco 49ers
- Previous game58%SF win probability
- Next game
Next game not scheduled yet
Other Week 18 games
- 53%NO win probability
- 55%CAR win probability
- 60%KC win probability
- 65%BUF win probability
Frequently Asked Questions
Cardinals has a 43% win probability, while 49ers has a 57% 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 State Farm Stadium in Glendale, AZ.

