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NFL game forecasts & backtests 11,978 data points · 1,562 fields
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What the backtests support These verdicts summarize the frozen 2024–2025 evaluation. They do not promote experimental forecasts into current recommendations. A single correct pick is not proof of a repeatable pattern.
One game
No single-game verdict 80% margin range: ±18.0 points; observed coverage 82.3%
A single upset or correct pick cannot tell us whether a forecast has a lasting edge. Judge frozen predictions over many games.
The range is calibrated from historical errors; it does not capture every roster or injury change.
Across games
Measured pooled edge over Elo Model − Elo Brier -0.0078; 95% block interval -0.0140 to -0.0018 (n=569)
Lower Brier is better. The paired interval stays below zero across the pooled held-out games.
This is a historical model comparison, not proof of an advantage on the next matchup.
Across seasons
Consistency still mixed 1 of 2 seasons have a model-favoring 95% interval versus Elo
2024: -0.0139 to 0.0042 · 2025: -0.0186 to -0.0024
Only the evaluated seasons are represented. More unseen seasons and model-change controls are needed before calling this durable.
Player to next season
New signal not established Candidate MAE 3.103 vs age plus production 3.098 (3009 player-seasons)
The candidate does not beat the strongest existing baseline on this point-error measure.
Inspected historical seasons and excluded rookie or thin-history cohorts limit any claim about next-season skill.
Historical market check
Market ahead on paired subset Model − market Brier 0.0107; 95% block interval 0.0040 to 0.0185
Positive values favor the historical market on games with matched odds.
Historical odds lack archived quote times. This is not evidence of a real-time or tradable edge.
Evidence metadata Frozen artifact d5b0aa30726c · Snapshot Sep 5, 2026, 1:00 AM UTC
Read the compact evidence API
Players, teams & metrics All data points Field dictionary This-page CSV uses field path, type and value columns, including source context. Full dataset downloads are above.
11,978 matches · 2601–2650 shown. Every field remains available in the full download. Filters are saved in this page’s address.
Recorded data points Field path Value & type $["games"][7]["featureValues"]["homeGames"] 0 number $["games"][7]["featureValues"]["homeRest"] 21 number $["games"][7]["featureValues"]["marginDifference"] -1.5320578066333348 number $["games"][7]["featureValues"]["restDifference"] 0 number $["games"][7]["featureValues"]["scoringDifference"] 2.190556094447807 number $["games"][7]["featureValues"]["scoringSum"] 45.20244013006184 number $["games"][7]["featureValues"]["winRateDifference"] -0.06034066154775386 number $["games"][7]["gameId"] 2026_01_NO_DET string $["games"][7]["gameType"] REG string $["games"][7]["gameday"] 2026-09-13 string $["games"][7]["homeMarginInterval80"][0] -14.447108225485488 number $["games"][7]["homeMarginInterval80"][1] 21.62011877129529 number $["games"][7]["homeTeam"] DET string $["games"][7]["homeWinProbability"] 0.6350718350140697 number $["games"][7]["kickoff"] 2026-09-13T17:00:00Z string $["games"][7]["market"] Unavailable (null) null $["games"][7]["neutral"] false boolean $["games"][7]["totalInterval80"][0] 27.390158980420367 number $["games"][7]["totalInterval80"][1] 60.10377660494193 number $["games"][7]["week"] 1 number $["games"][8]["awayTeam"] NYJ string $["games"][8]["eloProbability"] 0.5629128831348873 number $["games"][8]["expectedAwayScore"] 20.071333800456088 number $["games"][8]["expectedHomeMargin"] 2.517521256875435 number $["games"][8]["expectedHomeScore"] 22.58885505733152 number $["games"][8]["expectedTotal"] 42.66018885778761 number $["games"][8]["featureValues"]["allowedDifference"] -2.421479453919119 number $["games"][8]["featureValues"]["allowedSum"] 56.58642940173007 number $["games"][8]["featureValues"]["awayGames"] 0 number $["games"][8]["featureValues"]["awayRest"] 21 number $["games"][8]["featureValues"]["eloDifference"] -11.05072703166229 number $["games"][8]["featureValues"]["homeField"] 1 number $["games"][8]["featureValues"]["homeGames"] 0 number $["games"][8]["featureValues"]["homeRest"] 21 number $["games"][8]["featureValues"]["marginDifference"] 5.760520978157719 number $["games"][8]["featureValues"]["restDifference"] 0 number $["games"][8]["featureValues"]["scoringDifference"] 3.3390415242385956 number $["games"][8]["featureValues"]["scoringSum"] 35.99920352248885 number $["games"][8]["featureValues"]["winRateDifference"] 0.06252184391968313 number $["games"][8]["gameId"] 2026_01_NYJ_TEN string $["games"][8]["gameType"] REG string $["games"][8]["gameday"] 2026-09-13 string $["games"][8]["homeMarginInterval80"][0] -15.516092241514952 number $["games"][8]["homeMarginInterval80"][1] 20.55113475526582 number $["games"][8]["homeTeam"] TEN string $["games"][8]["homeWinProbability"] 0.5828945825311517 number $["games"][8]["kickoff"] 2026-09-13T17:00:00Z string $["games"][8]["market"]["caveat"] Observed outcome price; quote age unknown. Market resolves ties/cancellations 50-50; model conditions on a decisive game. No calibrated edge or blend. string $["games"][8]["market"]["comparableProbability"] false boolean $["games"][8]["market"]["conditionId"] 0x690f27380314015502fdb1d7313c820a3dec804afb9484271d32fdabca4d715d string
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272 scheduled games, 32 team outlooks, probability calibration, score errors and player-production experiments. Frozen preseason research; does not change public rankings.
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ecbde32e2751aef21c0bf12e3dfcd6ef10021f583afb03d6db2f3bce002f9316
Published observations, approved source-labeled aggregates, research and definitions are provided within each dataset's stated scope. Read each record's source, period, scoring and availability. Research visibility does not promote a model into public rankings. Missing means unavailable, never zero. No account records or provider write access.