VotePredictor
past elections

Ohio Senate

Sherrod Brown (D) vs Josh Mandel (R)

Actual result
D+6.0
Final polls said
D+5.0
31 late polls · ✓
Model predicted
D+7.8
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
1Angus Reid GlobalD+6.00.0
2Columbus DispatchD+6.00.0
3Zogby AnalyticsD+6.90.9
4Marist CollegeD+5.01.0
5Rasmussen ReportsD+7.01.0
6Suffolk UniversityD+7.01.0
7Beacon Research/Shaw & Co. ResearchD+7.01.0
8VotePredictorD+7.81.8
9University of Cincinnati (Ohio Poll)D+3.82.2
10IpsosD+9.03.0
11SurveyUSAD+3.03.0
12Quinnipiac UniversityD+9.03.0
13Public Policy PollingD+10.04.0
14YouGovD+2.04.0
15We Ask AmericaD+2.04.0
16Gravis MarketingD+1.05.0
17Scott Rasmussen (Rasmussen Reports)EVEN6.0
18ABC News/The Washington PostD+12.06.0
19Public Opinion StrategiesR+1.07.0
20Clout ResearchR+5.011.0

Polls (56)

PollsterDatenPollMiss
Ipsos2012-11-04680D+9.03
Zogby Analytics2012-11-04832D+6.91
SurveyUSA2012-11-03803D+3.03
Angus Reid Global2012-11-03540D+6.00
Public Policy Polling2012-11-031000D+10.04
YouGov2012-11-021620D+2.04
University of Cincinnati (Ohio Poll)2012-11-02901D+3.82
Ipsos2012-11-011012D+8.02
Ipsos2012-11-011313D+9.03
Scott Rasmussen (Rasmussen Reports)2012-11-01750EVEN6
Marist College2012-10-31971D+5.01
Clout Research2012-10-301281R+5.011
Zogby Analytics2012-10-29826D+6.30
Rasmussen Reports2012-10-291000D+7.01
SurveyUSA2012-10-28603D+5.01
Columbus Dispatch2012-10-281501D+6.00
Scott Rasmussen (Rasmussen Reports)2012-10-28750D+2.04
Gravis Marketing2012-10-27730D+1.05
University of Cincinnati (Ohio Poll)2012-10-271182D+5.01
Public Policy Polling2012-10-27718D+11.05
Quinnipiac University2012-10-251110D+9.03
Scott Rasmussen (Rasmussen Reports)2012-10-23750D+4.02
SurveyUSA2012-10-21609D+1.05
University of Cincinnati (Ohio Poll)2012-10-201015D+4.02
Suffolk University2012-10-20600D+7.01
Public Policy Polling2012-10-19532D+5.01
Angus Reid Global2012-10-19550D+6.00
Quinnipiac University2012-10-191548D+9.03
Scott Rasmussen (Rasmussen Reports)2012-10-17750D+5.01
Public Opinion Strategies2012-10-16600R+1.07
Rasmussen Reports2012-10-151000D+6.00
SurveyUSA2012-10-14613D+5.01
Public Policy Polling2012-10-12880D+7.01
Scott Rasmussen (Rasmussen Reports)2012-10-10500D+1.05
Rasmussen Reports2012-10-081000D+5.01
YouGov2012-10-08851D+5.01
Marist College2012-10-08994D+11.05
Zogby Analytics2012-10-08842D+1.05
SurveyUSA2012-10-07808D+4.02
Scott Rasmussen (Rasmussen Reports)2012-10-04500EVEN6
Clout Research2012-10-041072R+4.110
We Ask America2012-10-041200D+2.04
Marist College2012-09-30931D+9.03
Public Policy Polling2012-09-29897D+8.02
Columbus Dispatch2012-09-241662D+10.04
Public Opinion Strategies2012-09-23600D+3.03
Gravis Marketing2012-09-21594D+0.95
Quinnipiac University2012-09-211162D+10.04
ABC News/The Washington Post2012-09-21759D+12.06
Beacon Research/Shaw & Co. Research2012-09-171009D+7.01
University of Cincinnati (Ohio Poll)2012-09-15861D+7.01
Scott Rasmussen (Rasmussen Reports)2012-09-12500D+8.02
YouGov2012-09-111036D+4.02
Marist College2012-09-10979D+7.01
Public Policy Polling2012-09-081072D+8.02
Gravis Marketing2012-09-071548D+5.60