VotePredictor
past elections

Maryland Senate

Chris Van Hollen (D) vs Chris Chaffee (R)

Actual result
D+31.7
Final polls said
D+23.0
1 late poll · ✓
Model predicted
D+24.9
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+24.96.8
2Goucher College Sarah T. Hughes Center for PoliticsD+23.08.7

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
6Fox NewsDem 99%0.000
7FiveThirtyEightDem 100%0.000
8Inside ElectionsDem 99%0.000
9JHK ForecastsDem 100%0.000
10Race to the WHDem 100%0.000
11RealClearPoliticsDem 99%0.000
12Sabato's Crystal BallDem 99%0.000
13Split TicketDem 99%0.000
14VotePredictorDem 100%0.000

Polls (1)

PollsterDatenPollMiss
Goucher College Sarah T. Hughes Center for Politics2022-09-10748D+23.09