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University of Utah Hinckley Institute of Politics

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

Record by cycle

CyclePollsAvg. ErrorLeanWinner Called
2018 5 5.8 pts R+3.9 100%

Every scored poll

DateRacePoll MarginActualErrorCalled It
2018-10-10 UT-2 House R+23.0 R+17.2 5.8 ✓
2018-10-07 UT-4 House Even D+0.3 0.3 —
2018-10-06 UT-3 House R+54.0 R+40.2 13.8 ✓
2018-10-06 UT-1 House R+32.0 R+36.7 4.7 ✓
2018-10-06 UT Senate R+36.0 R+31.7 4.3 ✓

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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