VotePredictor
past elections

Ohio House

Ken Harbaugh (D) vs Bob Gibbs (R)

Actual result
R+17.5
Final polls said
R+12.1
2 late polls · ✓
Model predicted
R+16.4
Winner
Rep

"Final polls said" averages polls from the last ~3 weeks — the call right before the vote, and how pollsters are rated. The model's prediction is walk-forward (trained only on earlier races).

Final rankings

How everyone who called this race did, ranked — VotePredictor shown inline (★).

Pollsters — each pollster's final poll vs the result

#PollsterFinal callMissCalled
1Øptimus AnalyticsR+18.30.8
2VotePredictorR+16.41.1
3Mellman GroupR+7.010.5
4Change ResearchR+6.011.5

Forecasters — pre-election win probability, scored by Brier

#ForecasterWin probBrierCalled
1Cook PoliticalRep 99%0.000
2FiveThirtyEightRep 99%0.000
3The EconomistRep 98%0.001
4VotePredictorRep 97%0.001
5Sabato's Crystal BallRep 90%0.010
6DDHQ/Decision DeskRep 82%0.031

Polls (3)

PollsterDatenPollMiss
Øptimus Analytics2018-10-31800R+18.31
Change Research2018-10-25682R+6.011
Mellman Group2018-10-05400R+7.010