VotePredictor
past elections

Colorado Senate

John Wright Hickenlooper (D) vs Cory Gardner (R)

Actual result
D+9.3
Final polls said
D+9.9
5 late polls · ✓
Model predicted
D+10.0
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
1Data for ProgressD+9.00.3
2RMG ResearchD+9.00.3
3SurveyUSAD+9.00.3
4VotePredictorD+10.00.7
5YouGovD+8.01.3
6Morning ConsultD+7.91.4
7Keating Research/OnSight Public Affairs/MelansonD+11.01.7
8CiviqsD+11.01.7
9SwayableD+13.84.5
10RBI Strategies & ResearchD+14.04.7

Forecasters — pre-election win probability, scored by Brier

#ForecasterWin probBrierCalled
1CNalysisDem 99%0.000
2Princeton Election ConsortiumDem 98%0.000
3VotePredictorDem 95%0.002
4The EconomistDem 95%0.003
5Race to the WHDem 94%0.004
6JHK ForecastsDem 92%0.006
7Elections DailyDem 90%0.010
8Sabato's Crystal BallDem 90%0.010
9DDHQ/Decision DeskDem 86%0.020
10FiveThirtyEightDem 84%0.026
11Cook PoliticalDem 75%0.062
12Inside ElectionsDem 75%0.062
13RealClearPoliticsDem 75%0.062

Polls (12)

PollsterDatenPollMiss
Keating Research/OnSight Public Affairs/Melanson2020-10-31502D+11.02
Data for Progress2020-10-29709D+9.00
Swayable2020-10-27443D+13.84
Morning Consult2020-10-26727D+7.91
Morning Consult2020-10-15788D+8.01
RBI Strategies & Research2020-10-14502D+14.05
Civiqs2020-10-131013D+11.02
RMG Research2020-10-12800D+9.00
Keating Research/OnSight Public Affairs/Melanson2020-10-10519D+10.01
YouGov2020-10-07800D+8.01
SurveyUSA2020-10-031021D+9.00
Morning Consult2020-09-15613D+7.02