VotePredictor
past elections

Washington Senate

Patty Murray (D) vs George R. Nethercutt (R)

Actual result
D+12.2
Final polls said
D+13.8
5 late polls · ✓
Model predicted
D+12.2
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+12.20.1
2Mason-Dixon Polling & StrategyD+14.01.8
3FM3 ResearchD+15.02.8
4Mellman GroupD+16.03.8
5Elway ResearchD+17.04.8
6SurveyUSAD+6.06.2

Polls (11)

PollsterDatenPollMiss
SurveyUSA2004-10-30622D+6.06
Mason-Dixon Polling & Strategy2004-10-25800D+14.02
SurveyUSA2004-10-24618D+14.02
SurveyUSA2004-10-16640D+18.06
Elway Research2004-10-15405D+17.05
SurveyUSA2004-10-03636D+19.07
FM3 Research2004-09-281000D+15.03
SurveyUSA2004-09-20624D+12.00
Elway Research2004-09-18405D+20.08
Mellman Group2004-09-10600D+16.04
FM3 Research2004-09-091000D+13.01