Week 18 predictions

San Francisco 49ers at Arizona Cardinals

Game data updated 27 min ago · this page re-reads every 10 min while open

Week 18, 2026 · Sunday, Jan 10, 5:00 AM · closed

San Francisco 49ers
1–0 · Elo 1584 · Brock Purdy
Elo: SF 68%Spread: SF 74%
Arizona Cardinals
1–0 · Elo 1488 · Jacoby Brissett (-40) · Home

What the forecasters say

ForecasterFavorsARISFNote
EloSF 68%32%68%ARI 1488 vs SF 1584, implied spread ARI +3.5
Closing spreadSF 74%26%74%ARI +8.5
The blendSF 72%28%72%

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The spot: Clear favorite, mild disagreement

Both favor the same team by 60% or more, but they differ by 4 to 10 points. Replays: favorites won about as often as the average of the two forecasts said (no surplus either way). The blend without a bump. Nothing to exploit; take the average.

San Francisco 49ers over the Cardinals: Elo 68%, market 74%. Clear favorite, take the average. Brissett is costing 40 Elo.

Details

Line movement

No market has priced this game yet. Kalshi and Polymarket usually list games about a week out; sportsbooks earlier.