VotePredictor
past elections

Colorado Senate

Mark Udall (D) vs Cory Gardner (R)

Actual result
R+1.9
Final polls said
R+2.1
20 late polls · ✓
Model predicted
R+1.3
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
1Quinnipiac UniversityR+2.00.1
2SurveyUSAR+2.00.1
3IpsosR+2.00.1
4VotePredictorR+1.30.7
5Marist CollegeR+1.00.9
6Monmouth University Polling InstituteR+1.00.9
7Public Policy PollingR+3.01.1
8Vox Populi PollingR+3.01.1
9YouGovR+0.81.1
10GQREVEN1.9
11Big VillageR+4.02.1
12Keating ResearchD+1.02.9
13Strategies 360D+1.02.9
14Harstad Strategic ResearchD+1.02.9
15Gravis MarketingR+5.03.1
16Mellman GroupD+2.03.9
17Rasmussen ReportsR+6.04.1
18Beacon Research/Shaw & Co. ResearchR+6.04.1
19ccAdvertisingR+6.04.1
20Benenson Strategy GroupD+3.04.9
21Suffolk UniversityR+7.45.5

Polls (35)

PollsterDatenPollMiss
Public Policy Polling2014-11-01739R+3.01
Quinnipiac University2014-10-30815R+2.00
YouGov2014-10-281417R+0.81
SurveyUSA2014-10-28618R+2.00
Public Policy Polling2014-10-28573EVEN2
Vox Populi Polling2014-10-26642R+3.01
Quinnipiac University2014-10-24844R+7.05
Keating Research2014-10-221005D+1.03
Strategies 3602014-10-22760D+1.03
Rasmussen Reports2014-10-22966R+6.04
Harstad Strategic Research2014-10-211004D+1.03
Suffolk University2014-10-20500R+7.45
YouGov2014-10-201567D+1.03
Marist College2014-10-20755R+1.01
Monmouth University Polling Institute2014-10-19431R+1.01
Quinnipiac University2014-10-18974R+5.03
Public Policy Polling2014-10-18778R+3.01
Ipsos2014-10-171099R+2.00
Gravis Marketing2014-10-16695R+5.03
Benenson Strategy Group2014-10-15600D+3.05
Mellman Group2014-10-14800D+2.04
Big Village2014-10-11665R+4.02
SurveyUSA2014-10-11570R+2.00
Quinnipiac University2014-10-10988R+6.04
Beacon Research/Shaw & Co. Research2014-10-06739R+6.04
SurveyUSA2014-10-06800R+4.02
Rasmussen Reports2014-09-29950R+1.01
GQR2014-09-26679EVEN2
YouGov2014-09-261634D+3.05
ccAdvertising2014-09-202094R+6.04
Public Policy Polling2014-09-20652R+2.00
Gravis Marketing2014-09-16657R+7.05
Suffolk University2014-09-15500R+1.01
Quinnipiac University2014-09-121211R+8.06
SurveyUSA2014-09-09664D+4.06