VotePredictor
past elections

Illinois Senate

Richard J. Durbin (D) vs Mark C. Curran (R)

Actual result
D+16.1
Final polls said
D+23.5
2 late polls · ✓
Model predicted
D+26.4
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
1Research Co.D+22.05.9
2Victory ResearchD+25.08.9
3VotePredictorD+26.410.3

Forecasters — pre-election win probability, scored by Brier

#ForecasterWin probBrierCalled
1CNalysisDem 99%0.000
2Cook PoliticalDem 99%0.000
3DDHQ/Decision DeskDem 99%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 (2)

PollsterDatenPollMiss
Research Co.2020-10-31450D+22.06
Victory Research2020-10-311208D+25.09