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2021 · Week 9 · v0.2 · regular season

Arizona Cardinals at San Francisco 49ers

All historical predictions

Before kickoff

ARI
59%
SF
41%
Predicted winner
ARI
Confidence
57%
Snapshot
In-season walk-forward

Stored from information available before kickoff in a walk-forward historical simulation. Kickoff did not publish this pick publicly at the time. Not betting advice.

Final

3117

Winner ARI. Kickoff was correct.

Why the model leaned this way

Model contributions (standardized feature × coefficient). Not causal explanations.

  • Home field+0.8 SF
  • Scoring−0.3 ARI
  • Points allowed+0.3 SF
  • Turnovers−0.2 ARI