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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 · 51–100 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"]["pooled"]["baselines"]["coin"]["logLoss"] 0.6931471805599453 number $["backtest"]["pooled"]["baselines"]["coin"]["n"] 569 number $["backtest"]["pooled"]["baselines"]["elo"]["accuracy"] 0.6344463971880492 number $["backtest"]["pooled"]["baselines"]["elo"]["brier"] 0.2244140762329579 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][0]["lower"] 0.2 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][0]["n"] 4 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][0]["observed"] 0.5 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][0]["predicted"] 0.2761113566564723 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][0]["upper"] 0.3 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][1]["lower"] 0.3 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][1]["n"] 35 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][1]["observed"] 0.3142857142857143 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][1]["predicted"] 0.36534167852540744 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][1]["upper"] 0.4 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][2]["lower"] 0.4 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][2]["n"] 110 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][2]["observed"] 0.3181818181818182 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][2]["predicted"] 0.4585442177635818 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][2]["upper"] 0.5 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][3]["lower"] 0.5 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][3]["n"] 180 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][3]["observed"] 0.48333333333333334 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][3]["predicted"] 0.5516228577556607 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][3]["upper"] 0.6 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][4]["lower"] 0.6 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][4]["n"] 162 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][4]["observed"] 0.6728395061728395 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][4]["predicted"] 0.647408378434509 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][4]["upper"] 0.7 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][5]["lower"] 0.7 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][5]["n"] 69 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][5]["observed"] 0.7971014492753623 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][5]["predicted"] 0.738336752136096 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][5]["upper"] 0.8 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][6]["lower"] 0.8 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][6]["n"] 9 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][6]["observed"] 1 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][6]["predicted"] 0.8216106024286668 number $["backtest"]["pooled"]["baselines"]["elo"]["calibration"][6]["upper"] 0.9 number $["backtest"]["pooled"]["baselines"]["elo"]["expectedCalibrationError"] 0.0706407786399599 number $["backtest"]["pooled"]["baselines"]["elo"]["logLoss"] 0.6394383329364529 number $["backtest"]["pooled"]["baselines"]["elo"]["n"] 569 number $["backtest"]["pooled"]["baselines"]["home_rate"]["accuracy"] 0.5413005272407733 number $["backtest"]["pooled"]["baselines"]["home_rate"]["brier"] 0.24882942357309631 number $["backtest"]["pooled"]["baselines"]["home_rate"]["calibration"][0]["lower"] 0.5 number $["backtest"]["pooled"]["baselines"]["home_rate"]["calibration"][0]["n"] 569 number $["backtest"]["pooled"]["baselines"]["home_rate"]["calibration"][0]["observed"] 0.5413005272407733 number $["backtest"]["pooled"]["baselines"]["home_rate"]["calibration"][0]["predicted"] 0.564528520820775 number $["backtest"]["pooled"]["baselines"]["home_rate"]["calibration"][0]["upper"] 0.6 number $["backtest"]["pooled"]["baselines"]["home_rate"]["expectedCalibrationError"] 0.023227993580001716 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.