VotePredictor
past elections

Illinois Governor

Rod Blagojevich (D) vs Jim Ryan (R)

Actual result
D+7.1
Final polls said
D+9.9
11 late polls · ✓
Model predicted
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
1EscalentD+6.01.1
2Illinois Wesleyan University Department of Political ScienceD+6.01.1
3Mason-Dixon Polling & StrategyD+9.01.9
4Richard Day ResearchD+9.01.9
5Market Shares Corp.D+10.02.9
6KRC ResearchD+12.04.9
7SurveyUSAD+14.06.9
8Zogby AnalyticsR+0.37.4
9Scott Rasmussen (Rasmussen Reports)D+15.07.9
10Garin-Hart-Yang Research GroupD+16.08.9

Polls (18)

PollsterDatenPollMiss
Zogby Analytics2002-10-31802R+0.37
SurveyUSA2002-10-29535D+14.07
Escalent2002-10-28400D+6.01
Garin-Hart-Yang Research Group2002-10-28606D+16.09
Scott Rasmussen (Rasmussen Reports)2002-10-26600D+15.08
Market Shares Corp.2002-10-26701D+10.03
KRC Research2002-10-23400D+12.05
Mason-Dixon Polling & Strategy2002-10-22625D+9.02
SurveyUSA2002-10-22535D+12.05
Illinois Wesleyan University Department of Political Science2002-10-21497D+6.01
Richard Day Research2002-10-20800D+9.02
Zogby Analytics2002-10-08802D+11.04
SurveyUSA2002-10-08535D+19.012
Market Shares Corp.2002-09-29701D+16.09
SurveyUSA2002-09-25535D+19.012
Zogby Analytics2002-09-18800D+19.012
Mason-Dixon Polling & Strategy2002-09-16621D+5.02
SurveyUSA2002-09-11535D+24.017