Research / Model Analysis

NFL Week 3: Eagles vs Bears — Model Analysis

Game: Eagles vs Bears Posted: September 24, 2026 · VAR Research Week: 3 · 2026-27 season Kickoff: Tue Sep 29 2026, 00:15 UTC Venue: Soldier Field Tier signal: PRIME_TOT Pre-registration: /methodology/2026-27-predictions

PRIME-tier picks

Market Side Model line Market line Edge
Total over 61.7 44.0 +17.7 pts

Update 2026-09-24: VAR retired the PRIME_TOT totals tier on this date. The level correction applied to the model’s game total in production was found to be wrong-signed, and the leak-free walk-forward of the live engine shows the model’s total carries no information against the closing line (the actual total lands on the model’s side 50.2% of the time, n=816). The total pick above was published before kickoff and stays in the record exactly as published — it is graded like every other pick — but no further totals picks will be published. Details: /methodology/2026-27-predictions (changelog).

Model context

Win-probability projection: Bears 54.4% vs Eagles 45.6%. Projected total: 61.7 points.

How to read this

Projections come from VAR’s production NFL ensemble. The PRIME-tier filter is the model’s pre-registered high-confidence threshold: PRIME spread fires at |edge| >= 6 points (the model’s spread differs from the market spread by at least 6 points; nothing else gates it). The PRIME_TOT totals tier (|edge| >= 7) was retired on 2026-09-24; picks published before that date remain in the record.

Filter correction 2026-10-02: publication filter corrected to the pre-registered |edge| ≥ 6; before this date only the internal ‘road favorite’ subset was posted. Games that qualified and were not posted are counted as unpublished signals on /performance, not added to the record after the fact.

Validation status: the backtest figures originally cited for these tiers (April 2026) were withdrawn on 2026-05-17 after an audit found feature lookahead in the harness. The leak-free recomputation grades them at break-even or below (spread |edge| >= 6: 51.1% against the close, 95% CI [45.2%, 57.0%]; PRIME_TOT 44.3% straight-up). These posts are a pre-registered forward test of that signal, not a claim of edge. Live forward tracking: /performance. Full correction notice: /insights/nfl-2026-27-pre-registration-correction.

The 2026-27 NFL season is VAR’s first publicly-verifiable forward test of the PRIME spread tier (and, until 2026-09-24, PRIME_TOT). Success and failure criteria for the season are pre-registered at /methodology/2026-27-predictions.

Results

Final: Bears 27 — Eagles 7 (margin +20, total 34). PRIME_TOT pick: LOSS (over model 61.7, market 44.0, actual 34). Tier retired 2026-09-24; graded for the record.

Running season tracking + CI lower bound: /performance.

Reminders

  • Lines are recorded at the time of publication. Closing-line edge may differ.
  • This is research output, not financial advice. VAR does not place bets on behalf of readers.
  • Postmortems for any model miss are published within 24 hours under /insights.
Results

Results pending. Graded after the card concludes.