Massachusetts Senate 2020 — Model Retrospective

The model's final pre-election forecast gave Kevin J. O'Connor a 33% chance of winning the Massachusetts Senate 2020 primary. Kevin J. O'Connor won, matching the model's top pick.

1. Kevin J. O'Connor — 33% model odds (won)
2. Shiva Ayyadurai — 33% model odds
3. All Others — 33% model odds

Model accuracy · 2026 race forecasts