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University of Akron Ray C. Bliss Institute of Applied Politics

3 scored general-election polls (2016–2018) , each measured against the certified result. How to read these numbers: methodology.

Record by cycle

CyclePollsAvg. ErrorLeanWinner Called
2018 2 3.9 pts D+3.9 100%
2016 1 11.1 pts D+11.1 0%

Every scored poll

DateRacePoll MarginActualErrorCalled It
2018-09-22 OH Governor R+1.0 R+3.7 2.7 ✓
2018-09-22 OH Senate D+12.0 D+6.9 5.2 ✓
2016-10-02 OH President D+3.0 R+8.1 11.1 ✗

Margins shown as party lead (D+/R+); for non-D-vs-R matchups the margin is first-listed candidate minus second. Historical scored-poll data for cycles through 2023 from FiveThirtyEight's pollster-ratings dataset (CC-BY-4.0); 2024 scored by PollingSource. This record never changes what enters the PollingSource average.

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