VotePredictor
past elections

Tennessee Senate

Phil Bredesen (D) vs Marsha Blackburn (R)

Actual result
R+10.8
Final polls said
R+4.8
8 late polls · ✓
Model predicted
R+8.5
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
1Beacon Research/Shaw & Co. ResearchR+9.01.8
2VotePredictorR+8.52.3
3Emerson CollegeR+8.42.4
4YouGovR+8.02.8
5The New York Times/Siena CollegeR+14.43.6
6Vox Populi PollingR+6.04.8
7CygnalR+5.85.0
8Marist CollegeR+5.05.8
9SSRSR+4.06.8
10American Pulse Research & PollingR+3.37.5
11IpsosR+3.07.8
12Targoz Market ResearchEVEN10.8
13East Tennessee State University Applied Social Research LaboratoryEVEN10.8
14SurveyMonkeyEVEN10.8
15Garin-Hart-Yang Research GroupD+2.012.8

Forecasters — pre-election win probability, scored by Brier

#ForecasterWin probBrierCalled
1FiveThirtyEightRep 80%0.040
2VotePredictorRep 79%0.045
3JHK ForecastsRep 75%0.062
4Sabato's Crystal BallRep 75%0.062
5Inside ElectionsRep 75%0.062
6DDHQ/Decision DeskRep 73%0.072
7Cook PoliticalDem 50%0.250

Polls (20)

PollsterDatenPollMiss
Targoz Market Research2018-10-30480EVEN11
Emerson College2018-10-29632R+8.42
Beacon Research/Shaw & Co. Research2018-10-29718R+9.02
Vox Populi Polling2018-10-28780R+6.05
East Tennessee State University Applied Social Research Laboratory2018-10-26495EVEN11
SSRS2018-10-26764R+4.07
Cygnal2018-10-26497R+5.85
Marist College2018-10-25471R+5.06
Targoz Market Research2018-10-11558R+4.07
SSRS2018-10-10800D+1.012
The New York Times/Siena College2018-10-10593R+14.44
Ipsos2018-10-081108R+3.08
YouGov2018-10-04871R+8.03
Beacon Research/Shaw & Co. Research2018-10-01666R+5.06
Garin-Hart-Yang Research Group2018-09-24600D+2.013
SurveyMonkey2018-09-171609EVEN11
Vox Populi Polling2018-09-17567D+2.013
SSRS2018-09-13723D+5.016
American Pulse Research & Polling2018-09-111038R+3.37
Beacon Research/Shaw & Co. Research2018-09-10686R+3.08