PUBLISHED Mar. 25, 2021, at 10:00 AM

FiveThirtyEight’s Pollster Ratings

Based on the historical accuracy and methodology of each polling organization’s polls.

Read moreDownload the dataSee the latest polls

Research Co.

B-
Polls analyzed35
Races called correctly91%
Most recent cycle2020
Affiliated with professional polling organization (NCPP/AAPOR/Roper)No

How accurate are the polls from Research Co.?

Polls conducted within 21 days of an election (based on the poll’s median date) are used to determine the pollster’s grade.

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