Massachusetts House 2020 — Model Retrospective

The model's final pre-election forecast gave Robbie H. Goldstein a 55% chance of winning the Massachusetts House 2020 primary. Stephen F. Lynch won — an upset relative to the model's favorite.

1. Robbie H. Goldstein — 55% model odds
2. Stephen F. Lynch — 22% model odds (won)
3. All Others — 22% model odds

Model accuracy · 2026 race forecasts