Final · our forecast was CHI 23%, DET 77% · Updated Sep 14, 2025
Expected margin
DET by 13.7
Expected score
DET 31.7 – 18.0 CHI
Expected total
49.7
BearsThe matchupLions
+336Our fair odds−336
18.0Expected points31.7
−0.36Power rating+0.69
24.0Points / game13.0
27.0Allowed / game27.0
317Total yards / game246
5.0Yards / play3.8
198Passing yards / game200
0−1Season record0−1
1−9Last 107−3
Prediction markets
Kalshi · Polymarket US · ProphetX · Novig
CHI chance · DET chance
Our model fair23.0%77.0%
Kalshino two-sided price
Polymarket USno two-sided price
ProphetXno two-sided price
Novigno two-sided price
Full price table
Team
Our modelfair
Kalshi
Polymarket US
ProphetX
Novig
Moneyline
CHIChicago Bears
+33623%
—
—
—
—
DETDetroit Lions
−33677%
—
—
—
—
SpreadDET by 13.7
CHIChicago Bears
+13.7our margin
—
—
—
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DETDetroit Lions
−13.7our margin
—
—
—
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Totalwe expect 49.7
Over
49.7our total
—
—
—
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Under
49.7our total
—
—
—
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These are each venue’s last prices before the start (Kalshi’s moneyline: its pre-game close). Odds are the price to buy that side now, taker fee included; the small percent is the implied chance of that same price. Highlighted is the best price in the row among venues on the same line. — means not listed (hover or tap for why). A market price is not the true chance of winning.
Margin range
Detroit Lions by 13.7 expected
494235282114707142128354249
← CHI wins byDET wins by →
Detroit Lions wins by 3 or more79%
Detroit Lions wins by 7 or more65%
Detroit Lions wins by 10 or more57%
Within 3 points either way17%
Centered on the expected margin above; shape from the real results of 1,401 past NFL games.
Total range
49.7 expected
2030405060708090
Total points, both teams
Total over 42.567%
Total over 49.548%
Total over 56.531%
Total from 43 to 5636%
Centered on the expected total above; shape from the real results of 1,401 past NFL games.