VotePredictor
past elections

Illinois Senate

Tammy Duckworth (D) vs Kathy Salvi (R)

Actual result
D+15.3
Final polls said
D+14.6
3 late polls · ✓
Model predicted
D+15.6
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+15.60.3
2CiviqsD+16.00.7
3Public Policy PollingD+14.01.3
4Research Co.D+18.02.7
5RepassD+19.74.4
6Emerson CollegeD+9.85.5

Forecasters — pre-election win probability, scored by Brier

#ForecasterWin probBrierCalled
1CNalysisDem 99%0.000
2Cook PoliticalDem 99%0.000
3DDHQ/Decision DeskDem 98%0.000
4The EconomistDem 100%0.000
5Elections DailyDem 99%0.000
6Fox NewsDem 99%0.000
7FiveThirtyEightDem 100%0.000
8Inside ElectionsDem 99%0.000
9JHK ForecastsDem 99%0.000
10Race to the WHDem 100%0.000
11Sabato's Crystal BallDem 99%0.000
12Split TicketDem 99%0.000
13VotePredictorDem 99%0.000
14RealClearPoliticsDem 90%0.010

Polls (6)

PollsterDatenPollMiss
Research Co.2022-11-05450D+18.03
Civiqs2022-10-24659D+16.01
Emerson College2022-10-221000D+9.86
Public Policy Polling2022-10-10770D+14.01
Repass2022-10-081000D+19.74
Emerson College2022-09-221000D+18.94