VotePredictor
past elections

Washington Governor

Christine Gregoire (D) vs Dino Rossi (R)

Actual result
EVEN
Final polls said
D+2.8
5 late polls · ✗
Model predicted
D+1.4
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
1VotePredictorD+1.41.4
2Mason-Dixon Polling & StrategyD+5.05.0
3SurveyUSAR+6.06.0
4IpsosD+6.06.0
5Elway ResearchD+7.07.0

Polls (9)

PollsterDatenPollMiss
SurveyUSA2004-10-30620R+6.06
Mason-Dixon Polling & Strategy2004-10-25800D+5.05
SurveyUSA2004-10-24618D+2.02
SurveyUSA2004-10-16634D+6.06
Elway Research2004-10-15405D+7.07
SurveyUSA2004-10-03620D+10.010
SurveyUSA2004-09-20620D+1.01
Ipsos2004-09-19406D+6.06
Elway Research2004-09-18405D+11.011