NFL Week 1: Cardinals vs Chargers — Model Analysis

Game: Cardinals vs Chargers Posted: September 9, 2026 · VAR Research Week: 1 · 2026-27 season Kickoff: Sun Sep 13 2026, 20:25 UTC Venue: SoFi Stadium Tier signal: PRIME_TOT Pre-registration: /methodology/2026-27-predictions

PRIME-tier picks

Model context

Win-probability projection: Chargers 69.2% vs Cardinals 30.8%. Projected total: 55.1 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, PRIME_TOT at |edge| >= 7.

Validation status: the backtest figures originally cited for these tiers (April 2026) were withdrawn on 2026-05-17 after an audit found feature lookahead in the harness.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 these tiers. Success and failure criteria for the season are pre-registered at /methodology/2026-27-predictions.

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.