VotePredictor
past elections

Missouri Governor

Claire McCaskill (D) vs Matt Blunt (R)

Actual result
R+3.0
Final polls said
R+3.8
4 late polls · ✓
Model predicted
R+3.4
Winner
Rep

"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
1VotePredictorR+3.40.4
2Market Research Institute Inc.R+1.02.0
3SurveyUSAEVEN3.0

Polls (6)

PollsterDatenPollMiss
SurveyUSA2004-10-30689EVEN3
SurveyUSA2004-10-24678R+8.05
Market Research Institute Inc.2004-10-24500R+1.02
SurveyUSA2004-10-17667R+6.03
SurveyUSA2004-10-03689R+1.02
SurveyUSA2004-09-08689R+1.02