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.

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Harstad Strategic Research Inc.

Pollsters with a relatively small number of polls now receive a provisional rating rather than a precise letter grade.
B/C
Polls analyzed11
Races called correctly77%
Most recent cycle2014
Affiliated with professional polling organization (NCPP/AAPOR/Roper)No

How accurate are the polls from Harstad Strategic Research Inc.?

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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