14 final polls from 2010 to 2020 (average error 2.6 points): too few to grade. Crosstab grades every 2026 pollster on its own results after Election Day.
2 polls this cycle.
| Date | Poll | Result | vs. other polls |
|---|---|---|---|
| 09-22 | Massachusetts Senate | Markey 52, Deaton 26 | |
| 09-22 | Massachusetts Governor | Healey 51, Minogue 30 | R+1.4 |
States polled: Massachusetts.
Open MassINC Polling Group in the interactive Trust Index All pollster ratings
MassINC Polling Group has 14 final polls in the 1998–2022 results data, too few to receive a grade (at least 20 graded polls are needed). Its average error was 2.6 points.
Historically, MassINC Polling Group's misses leaned R+2.1 on average. Lean describes how its numbers compare; it isn't an accusation of bias.
2 polls in Crosstab's data, including Massachusetts Senate, Massachusetts Governor.
Grades: Crosstab Trust Index, computed from FiveThirtyEight's pollster-ratings data (CC BY 4.0), 1998–2022; 2026 measures from Crosstab's polling data.
Updated 2026-10-04 · Crosstab, nonpartisan polling analysis.