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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 · 9451–9500 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"][220]["totalInterval80"][0] 32.81050575779206 number $["games"][220]["totalInterval80"][1] 65.52412338231362 number $["games"][220]["week"] 15 number $["games"][221]["awayTeam"] DEN string $["games"][221]["eloProbability"] 0.3752054684779881 number $["games"][221]["expectedAwayScore"] 23.64888295584115 number $["games"][221]["expectedHomeMargin"] -5.7969107145367715 number $["games"][221]["expectedHomeScore"] 17.851972241304377 number $["games"][221]["expectedTotal"] 41.500855197145526 number $["games"][221]["featureValues"]["allowedDifference"] 4.3967757469207776 number $["games"][221]["featureValues"]["allowedSum"] 42.917903466834815 number $["games"][221]["featureValues"]["awayGames"] 0 number $["games"][221]["featureValues"]["awayRest"] 7 number $["games"][221]["featureValues"]["eloDifference"] -143.58722412694328 number $["games"][221]["featureValues"]["homeField"] 1 number $["games"][221]["featureValues"]["homeGames"] 0 number $["games"][221]["featureValues"]["homeRest"] 7 number $["games"][221]["featureValues"]["marginDifference"] -9.778033931006611 number $["games"][221]["featureValues"]["restDifference"] 0 number $["games"][221]["featureValues"]["scoringDifference"] -5.381258184085834 number $["games"][221]["featureValues"]["scoringSum"] 37.55275333079186 number $["games"][221]["featureValues"]["winRateDifference"] -0.31277966847306066 number $["games"][221]["gameId"] 2026_15_DEN_LV string $["games"][221]["gameType"] REG string $["games"][221]["gameday"] 2026-12-20 string $["games"][221]["homeMarginInterval80"][0] -23.83052421292716 number $["games"][221]["homeMarginInterval80"][1] 12.236702783853616 number $["games"][221]["homeTeam"] LV string $["games"][221]["homeWinProbability"] 0.3144711373195029 number $["games"][221]["kickoff"] 2026-12-20T21:25:00Z string $["games"][221]["market"] Unavailable (null) null $["games"][221]["neutral"] false boolean $["games"][221]["totalInterval80"][0] 25.144046384884746 number $["games"][221]["totalInterval80"][1] 57.85766400940631 number $["games"][221]["week"] 15 number $["games"][222]["awayTeam"] DET string $["games"][222]["eloProbability"] 0.5638256410383227 number $["games"][222]["expectedAwayScore"] 20.20756635554408 number $["games"][222]["expectedHomeMargin"] 3.5932107739453203 number $["games"][222]["expectedHomeScore"] 23.800777129489404 number $["games"][222]["expectedTotal"] 44.008343485033485 number $["games"][222]["featureValues"]["allowedDifference"] -7.102325890358539 number $["games"][222]["featureValues"]["allowedSum"] 41.03952396070916 number $["games"][222]["featureValues"]["awayGames"] 0 number $["games"][222]["featureValues"]["awayRest"] 7 number $["games"][222]["featureValues"]["eloDifference"] -10.406123646899232 number $["games"][222]["featureValues"]["homeField"] 1 number $["games"][222]["featureValues"]["homeGames"] 0 number $["games"][222]["featureValues"]["homeRest"] 10 number $["games"][222]["featureValues"]["marginDifference"] 3.769146345116006 number
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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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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.