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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 · 551–600 shown. Every field remains available in the full download. Filters are saved in this page’s address.
Recorded data points Field path Value & type $["backtest"]["seasons"]["2025"]["baselines"]["coin"]["logLoss"] 0.6931471805599454 number $["backtest"]["seasons"]["2025"]["baselines"]["coin"]["n"] 284 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["accuracy"] 0.6302816901408451 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["brier"] 0.22961113229320385 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][0]["lower"] 0.2 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][0]["n"] 2 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][0]["observed"] 0.5 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][0]["predicted"] 0.2993086507525451 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][0]["upper"] 0.3 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][1]["lower"] 0.3 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][1]["n"] 26 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][1]["observed"] 0.34615384615384615 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][1]["predicted"] 0.3701510250564619 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][1]["upper"] 0.4 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][2]["lower"] 0.4 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][2]["n"] 49 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][2]["observed"] 0.30612244897959184 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][2]["predicted"] 0.45900199495339494 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][2]["upper"] 0.5 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][3]["lower"] 0.5 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][3]["n"] 84 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][3]["observed"] 0.5 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][3]["predicted"] 0.550897569363085 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][3]["upper"] 0.6 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][4]["lower"] 0.6 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][4]["n"] 85 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][4]["observed"] 0.6470588235294118 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][4]["predicted"] 0.6461078002137025 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][4]["upper"] 0.7 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][5]["lower"] 0.7 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][5]["n"] 34 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][5]["observed"] 0.7647058823529411 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][5]["predicted"] 0.7433117589064177 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][5]["upper"] 0.8 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][6]["lower"] 0.8 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][6]["n"] 4 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][6]["observed"] 1 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][6]["predicted"] 0.8147790347426047 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["calibration"][6]["upper"] 0.9 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["expectedCalibrationError"] 0.05049621115924323 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["logLoss"] 0.6506802925346525 number $["backtest"]["seasons"]["2025"]["baselines"]["elo"]["n"] 284 number $["backtest"]["seasons"]["2025"]["baselines"]["home_rate"]["accuracy"] 0.5352112676056338 number $["backtest"]["seasons"]["2025"]["baselines"]["home_rate"]["brier"] 0.2495979640980494 number $["backtest"]["seasons"]["2025"]["baselines"]["home_rate"]["calibration"][0]["lower"] 0.5 number $["backtest"]["seasons"]["2025"]["baselines"]["home_rate"]["calibration"][0]["n"] 284 number $["backtest"]["seasons"]["2025"]["baselines"]["home_rate"]["calibration"][0]["observed"] 0.5352112676056338 number $["backtest"]["seasons"]["2025"]["baselines"]["home_rate"]["calibration"][0]["predicted"] 0.5641559988091694 number $["backtest"]["seasons"]["2025"]["baselines"]["home_rate"]["calibration"][0]["upper"] 0.6 number $["backtest"]["seasons"]["2025"]["baselines"]["home_rate"]["expectedCalibrationError"] 0.02894473120353569 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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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.