VotePredictor
past elections

Colorado House

Betsy Markey (D) vs Cory Gardner (R)

Actual result
R+11.1
Final polls said
R+5.1
3 late polls · ✓
Model predicted
R+7.8
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
1ccAdvertisingR+12.41.3
2VotePredictorR+7.83.3
3PSB ResearchR+3.08.1
4Normington, Petts & AssociatesEVEN11.1

Polls (3)

PollsterDatenPollMiss
ccAdvertising2010-10-01442R+12.41
PSB Research2010-09-26391R+3.08
Normington, Petts & Associates2010-09-07400EVEN11