GameScope NFL research

GB at CHI uncertain forecast

Fri, Dec 25 at 1:00 PM ET · Soldier Field

Most likely outcome
CHI wins — 64.3%
GB win
35.7%
CHI win
64.3%

Expected score: GB 19.6 – CHI 26.6

Total anchored to the league-wide baseline of 46.2 points — a shared baseline, not a matchup-specific forecast.

Home-field adjustment included (+65 Elo rating points)

Fair odds (display only): GB 2.8 · CHI 1.56

How this forecast is calculated

Team ratings (Elo): GB 1521.5 vs CHI 1558.7. 393 games trained (Oct 30).

Model: nfl-elo-v2 — Elo ratings trained on real ESPN results (2025 regular+postseason and 2026 regular season to date), chronological replay, K=20, home advantage = 65 Elo rating points, applied only at true home venues: games the feed flags neutral-site get no home bonus, in training and in prediction. Totals baseline is the mean total points of the training games (measured, not assumed). Score-model spread/total probabilities use the engine's bivariate-normal assumptions (score std 13.5, correlation 0.3) — documented approximations, not measured NFL parameters. No backtest against closing lines exists; treat all outputs as experimental uncertain forecasts.

What the win probability uses: Elo ratings only, plus a home-field adjustment of 65 Elo rating points at true home venues (no adjustment at feed-flagged neutral sites).

Contextual research (displayed, not in the calculation): Contextual research only — form, rest, injuries, head-to-head, weather, and travel do not change the win probability above.

Totals: Expected scores are centered on a shared league-wide totals baseline of 46.2 points (the mean total of the training games) — a baseline, not a matchup-specific forecast.

Score-distribution assumptions: Spread/total probabilities assume team scores are bivariate normal (score std 13.5, correlation 0.3) — documented approximations, not measured NFL parameters.

Validation status: No backtest against closing lines exists. Treat all outputs as experimental uncertain forecasts.

Data used

Form & rest contextual research

GB (5-3) — 56 days rest

Last 5: 4-1 (1 straight win)

Oct 29, 2026CARW27-19
Oct 25, 2026DETL17-20
Oct 18, 2026DALW23-13
Oct 11, 2026CHIW31-7
Oct 4, 2026TBW17-14

CHI (5-2) — 63 days rest

Last 5: 4-1 (2 straight wins)

Oct 22, 2026NEW30-24
Oct 18, 2026ATLW31-23
Oct 11, 2026GBL7-31
Oct 4, 2026NYJW23-12
Sep 28, 2026PHIW27-7

Head-to-head contextual research CHI 2 - GB 3

Coverage: 2024-2026 regular+postseason schedules (ESPN)

DateScoreWinner
Nov 17, 2024CHI 19 - GB 20GB
Jan 5, 2025GB 22 - CHI 24CHI
Dec 7, 2025GB 28 - CHI 21GB
Dec 20, 2025CHI 22 - GB 16CHI
Oct 11, 2026GB 31 - CHI 7GB

Injuries contextual research

Week 8 report — availability for Week 16 unknown. These designations were published for Week 8's games. They are the latest available report, kept as dated context; they do not say who will be available in Week 16.

GB

Christian WatsonQuestionableWatson said he suffered a broken rib in Thursday night's 27-19 win over the Panthers, Rob Demovsky of ESPN.com reports.
Kaleb JohnsonOutJohnson (coach's decision) is inactive for Thursday's game against the Panthers, Mike Spofford of the team's official site reports.
Jonnu SmithOutSmith (coach's decision) is inactive for Thursday's game against the Panthers Mike Spofford of the team's official site reports.
Sean RhyanOutinactive
Travis GloverOutinactive
Donovan JenningsOutinactive
Zaire FranklinOutinactive
Micah ParsonsOutPackers head coach Matt LaFleur said Tuesday that Parsons (knee) has "a chance" to resume practicing next week, Matt Schneidman of The Athletic reports.
Show all 25 (17 more)
MarShawn LloydActiveLloyd rushed three times for seven yards and brought in his only target for nine yards in the Packers' 27-19 win over the Panthers on Thursday.
Trey SmackActiveSmack converted three of four extra-point tries and didn't attempt a field goal Thursday in a 27-19 win over Carolina.
Jordan LoveActiveLove completed 30 of 41 passes for 288 yards with three touchdowns and one interception and recovered a fumble in the Packers' 27-19 win over the Panthers on Thursday.
Tucker KraftActiveKraft secured all six targets for 53 yards and a touchdown in the Packers' 27-19 win over the Panthers on Thursday.
Matthew GoldenActiveGolden brought in seven of 13 targets for 79 yards and a touchdown in the Packers' 27-19 win over the Panthers on Thursday.
Josh JacobsActiveJacobs rushed 21 times for 39 yards and a touchdown and brought in all six targets for 13 yards and another score in the Packers' 27-19 win over the Panthers on Thursday.
Devonte WyattActiveWyatt (ankle) is active for Thursday's game against the Panthers, Mike Spofford of the team's official site reports.
Keisean NixonActiveNixon (shoulder) is active for Thursday's game against Carolina, Mike Spofford of the team's official site reports.
Anthony CampbellActive
Brenton Cox Jr.Active
Aaron BanksActive
Evan WilliamsActiveWilliams finished Sunday's 20-17 loss to the Lions with nine tackles (five solo) and one pass defense.
Isaiah McDuffieActiveMcDuffie logged 11 tackles (six solo), one fumble and one fumble recovery during the Packers' 20-17 loss to the Lions on Sunday.
Xavier McKinneyActiveMcKinney posted 10 tackles (four solo) during Sunday's 20-17 loss to the Lions.
Bo MeltonActiveMelton caught one of his two targets for four yards and logged a 24-yard kickoff return in the Packers' 20-17 loss to the Lions on Sunday.
Savion WilliamsActiveWilliams caught three passes on as many targets for 47 yards and turned two carries into four yards during the Packers' 20-17 loss to the Lions on Sunday.
Benjamin St-JusteActiveSt-Juste (hamstring) was estimated as a full participant on Monday's practice report, Matt Schneidman of The Athletic reports.

CHI

Anthony Johnson Jr.Outout
Kyle MonangaiQuestionableMonangai (thumb/toe) did not practice Thursday.
D'Marco JacksonQuestionablequestionable
Coby BryantInjured ReserveCoach Ben Johnson said Wednesday that Bryant (knee) will start running again in the "near future," Courtney Cronin of ESPN.com reports.
Jack SanbornQuestionablequestionable
Cole KmetInjured ReserveThe Bears placed Kmet (knee) on injured reserve Friday.
Malik Muhammad IIQuestionableMuhammad (toe) is doubtful to return to Thursday night's contest against the Patriots.
Show all 25 (18 more)
T.J. EdwardsActiveEdwards (hamstring) was considered to be a full participant on the Bears' estimated practice report Thursday.
Jeffery SimmonsActiveSimmons was traded to the Bears on Thursday, along with a 2028 fifth-round pick, in exchange for first-round picks in 2027 and 2028, as well as a 2027 fourth-round pick, Adam Schefter of ESPN reports.
Zavier ScottActiveChicago signed Scott from the practice squad to the active roster Tuesday.
Jayden LovingActive
Jordan McFaddenActive
Case KeenumActive
Kyler GordonActiveGordon recorded five tackles (three solo), including 1.0 sacks, in Thursday's 30-24 win over the Patriots.
Dillon ThienemanActiveThieneman tallied eight tackles (three solo), including 0.5 sacks, in a 30-24 victory versus the Patriots on Thursday.
Sam RoushActiveRoush is expected to get more work on offense after Cole Kmet (knee) landed on injured reserve Friday.
Kalif RaymondActiveRaymond did not catch either of his two targets and returned one punt for seven yards Thursday in a 30-24 win over New England.
Roschon JohnsonActiveJohnson rushed twice for 13 yards in the Bears' 30-24 victory over the Patriots on Thursday.
Montez SweatActiveThe NFL reinstated Sweat on Friday after he served a two-game suspension for violating the league's performance-enhancing substances policy.
Rome OdunzeActiveOdunze brought in four of five targets for 69 yards in the Bears' 30-24 win over the Patriots on Thursday.
Colston LovelandActiveLoveland secured seven of 12 targets for 69 yards and a touchdown during the Bears' 30-24 win over the Patriots on Thursday.
Cairo SantosActiveSantos went 3-for-4 on field-goal tries and made all three of his extra-point attempts in Thursday's 30-24 win over New England.
D'Andre SwiftActiveSwift rushed 22 times for 78 yards and a touchdown and brought in all four targets for 12 yards in the Bears' 30-24 win over the Patriots on Thursday.
Luther Burden IIIActiveBurden brought in all four targets for 130 yards and a touchdown and rushed once for seven yards in the Bears' 30-24 win over the Patriots on Thursday.
Caleb WilliamsActiveWilliams completed 22 of 33 passes for 308 yards with two touchdowns and no interceptions while rushing five times for 18 yards in the Bears' 30-24 win over the Patriots on Thursday.

Labels: Out = confirmed unavailable; Doubtful = projected unavailable; Questionable = projected uncertain.

Weather & travel contextual research

47.5°F, wind 2.5 mph, precip — mm (next 1h),
Forecast for Sun, Nov 8 at 7:00 PM ET (updated Oct 30). Weather data: MET Norway (api.met.no), CC BY 4.0 / NLOD 2.0

Travel (GB): ~184 miles, no time-zone change

Research only — not betting advice. All probabilities are uncertain forecasts from a simple model, never guarantees or 'locks'. GameScope places no wagers.
Scores/records/injuries: ESPN unofficial API (live). Weather: MET Norway.