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Chicago Bears

HC John Fox
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Detroit Lions

HC Jim Caldwell
Saturday 2017-12-16 · 16:30 Ford Field, Detroit US 🏟 Dome Spread 5.0 O/U 43.5

Win Probability

CHI
35.7%
DET
64.3%
🏟 Dome

Confidence: <strong>clear edge</strong> Bands are honesty-checked against held-out seasons, not a feeling about this game — see the <a href="/track-record">full track record</a>.

Key Insights

  • CHI offense: -0.128 EPA/play over its last 8 games (26th in the league)
  • Mitch Trubisky (CHI): -0.088 EPA/dropback in prior starts
  • DET defense: +0.049 EPA/play allowed over its last 8 games (30th in the league)
  • CHI defense: -0.107 EPA/play allowed over its last 8 games (7th in the league)
  • Indoors — weather neutralised

Predicted Final Score

CHI 20
DET 23
Projected margin: DET by 3 Projected total: 43

Typical error on unseen games: ±10.2 pts on margin, ±10.7 pts on total (held-out 2025). Treat this as a range, not a prediction to the point — see the <a href="/track-record">full track record</a>.

Injury Report — Week 15

CHI

Adrian Amos S Questionable Hamstring
Eddie Goldman DT Questionable Hip
DeAndre Houston-Carson S Questionable Ankle
Adam Shaheen TE Questionable Chest

DET

Travis Swanson C Out Concussion
Rick Wagner T Out Ankle
Emmett Cleary T Questionable Ankle
Ezekiel Ansah DE Questionable Ankle
T.J. Lang G Questionable Foot

Pulled fresh for 2017 week 15 specifically, not a cached snapshot — this changes every week as new reports come in.

Actual Result

CHI 10
DET 20

Prediction missed by 7 pts on margin, 13 pts on total.

Scoring Summary

  • Q1 12:03 FG DET (12:03) 5-M.Prater 48 yard field goal is GOOD, Center-48-D.Muhlbach, Holder-6-S.Martin. CHI 0 – DET 3
  • Q2 15:00 FG DET (15:00) 5-M.Prater 31 yard field goal is GOOD, Center-48-D.Muhlbach, Holder-6-S.Martin. CHI 0 – DET 6
  • Q2 06:15 TD DET (6:15) (Shotgun) 9-M.Stafford pass short right to 13-T.Jones for 3 yards, TOUCHDOWN. CHI 0 – DET 12
  • Q2 00:07 FG CHI (:07) (No Huddle) 1-M.Nugent 41 yard field goal is GOOD, Center-49-A.DePaola, Holder-16-P.O'Donnell. CHI 3 – DET 13
  • Q3 09:54 TD DET (9:54) (Shotgun) 9-M.Stafford pass short middle to 85-E.Ebron for 8 yards, TOUCHDOWN. CHI 3 – DET 19
  • Q4 02:39 TD CHI (2:39) (Shotgun) 10-M.Trubisky pass short right to 30-B.Cunningham for 9 yards, TOUCHDOWN. CHI 9 – DET 20

Fourth-Down Decisions

  • Q1 DET 4th & 3 at the 30
    Chose KICK ✓ matched the model
    p(convert) 48% p(FG) 78%

    (12:03) 5-M.Prater 48 yard field goal is GOOD, Center-48-D.Muhlbach, Holder-6-S.Martin.

  • Q1 CHI 4th & 6 at the 69
    Chose PUNT ✓ matched the model
    p(convert) 41%

    (9:54) 16-P.O'Donnell punts 39 yards to DET 30, Center-49-A.DePaola. 39-J.Agnew to DET 37 for 7 yards (30-B.Cunningham).

  • Q1 DET 4th & 10 at the 51
    Chose PUNT ✓ matched the model
    p(convert) 31% p(FG) 29%

    (7:29) 6-S.Martin punts 51 yards to end zone, Center-48-D.Muhlbach, Touchback.

  • Q1 CHI 4th & 7 at the 77
    Chose PUNT ✓ matched the model
    p(convert) 39%

    (5:35) 16-P.O'Donnell punts 51 yards to DET 26, Center-49-A.DePaola. 39-J.Agnew to DET 38 for 12 yards (49-A.DePaola).

  • Q2 DET 4th & 10 at the 13
    Chose KICK ✓ matched the model
    p(convert) 27% p(FG) 95%

    (15:00) 5-M.Prater 31 yard field goal is GOOD, Center-48-D.Muhlbach, Holder-6-S.Martin.

  • Q2 CHI 4th & 1 at the 55
    Chose PUNT Model wanted GO instead — cost +1.68 EP
    p(convert) 68%

    (12:06) 16-P.O'Donnell punts 50 yards to DET 5, Center-49-A.DePaola. 39-J.Agnew to DET 28 for 23 yards (16-P.O'Donnell). PENALTY on DET-31-D.Hayden, Offensive Holding, 8 yards, enforced at DET 16.

  • Q2 CHI 4th & 7 at the 42
    Chose PUNT ✓ matched the model
    p(convert) 35% p(FG) 51%

    (1:05) 16-P.O'Donnell punts 35 yards to DET 7, Center-49-A.DePaola, fair catch by 39-J.Agnew.

  • Q3 CHI 4th & 6 at the 60
    Chose PUNT ✓ matched the model
    p(convert) 40%

    (6:23) 16-P.O'Donnell punts 50 yards to DET 10, Center-49-A.DePaola. 39-J.Agnew to DET 26 for 16 yards (27-S.McManis).

  • Q3 DET 4th & 6 at the 70
    Chose PUNT ✓ matched the model
    p(convert) 41%

    (3:59) 6-S.Martin punts 24 yards to CHI 46, Center-48-D.Muhlbach, out of bounds. PENALTY on CHI-53-J.Timu, Offensive Holding, 10 yards, enforced at CHI 46.

  • Q4 CHI 4th & 6 at the 19 late-game
    Chose GO Model wanted KICK instead — cost +0.59 EP
    p(convert) 35% p(FG) 92%

    (2:51) (Shotgun) 10-M.Trubisky FUMBLES (Aborted) at DET 24, and recovers at DET 27. 10-M.Trubisky to DET 14 for 13 yards (94-E.Ansah). PENALTY on DET-24-N.Lawson, Defensive Holding, 5 yards, enforced at DET 14.

  • Q4 DET 4th & 7 at the 70 late-game
    Chose PUNT ✓ matched the model
    p(convert) 39%

    (2:19) 6-S.Martin punts 64 yards to CHI 6, Center-48-D.Muhlbach, downed by DET-26-D.Carey.