Illinois House 2018 — Model Retrospective

The model's final pre-election forecast gave Mike Bost a 47% chance of winning the Illinois House 2018 primary. Mike Bost won, matching the model's top pick.

  1. Mike Bost — 47% model odds (won)
  2. Randy Auxier — 47% model odds
  3. Brendan Kelly — 6% model odds

Model accuracy · 2026 race forecasts