VotePredictor
past elections

Arizona Senate

Rodney Britz Glassman (D) vs John McCain (R)

Actual result
R+24.2
Final polls said
R+19.0
2 late polls · ✓
Model predicted
R+19.8
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
1Scott Rasmussen (Rasmussen Reports)R+20.04.2
2VotePredictorR+19.84.4
3Public Policy PollingR+18.06.2
4Behavior Research Center (Rocky Mountain Poll)R+34.09.8

Polls (5)

PollsterDatenPollMiss
Scott Rasmussen (Rasmussen Reports)2010-10-28500R+20.04
Public Policy Polling2010-10-23664R+18.06
Behavior Research Center (Rocky Mountain Poll)2010-10-05450R+34.010
Scott Rasmussen (Rasmussen Reports)2010-10-03500R+21.03
Scott Rasmussen (Rasmussen Reports)2010-09-07500R+14.010