VotePredictor
past elections

Maryland President

Joe Biden (D) vs Donald Trump (R)

Actual result
D+33.2
Final polls said
D+32.0
3 late polls · ✓
Model predicted
D+32.1
Winner
Dem

"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
1VotePredictorD+32.11.1
2OpinionWorksD+32.01.2
3SurveyMonkeyD+35.01.8
4Goucher College Sarah T. Hughes Center for PoliticsD+31.02.2
5SwayableD+35.92.7
6Change ResearchD+29.04.2
7Gonzales Research & Marketing Strategies Inc.D+25.18.1

Forecasters — pre-election win probability, scored by Brier

#ForecasterWin probBrierCalled
1CNalysisDem 99%0.000
2Cook PoliticalDem 99%0.000
3DDHQ/Decision DeskDem 100%0.000
4The EconomistDem 100%0.000
5Elections DailyDem 99%0.000
6FiveThirtyEightDem 100%0.000
7Inside ElectionsDem 99%0.000
8JHK ForecastsDem 100%0.000
9Princeton Election ConsortiumDem 100%0.000
10Race to the WHDem 100%0.000
11RealClearPoliticsDem 99%0.000
12Sabato's Crystal BallDem 99%0.000
13VotePredictorDem 100%0.000

Polls (7)

PollsterDatenPollMiss
Swayable2020-10-27503D+35.93
SurveyMonkey2020-10-263216D+35.02
Gonzales Research & Marketing Strategies Inc.2020-10-21820D+25.18
SurveyMonkey2020-10-064647D+34.01
Goucher College Sarah T. Hughes Center for Politics2020-10-02776D+31.02
Change Research2020-09-30650D+29.04
OpinionWorks2020-09-08753D+32.01