VotePredictor
past elections

South Dakota President

Barack Obama (D) vs Mitt Romney (R)

Actual result
R+18.0
Final polls said
R+10.0
2 late polls · ✓
Model predicted
R+14.4
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
1VotePredictorR+14.43.6
2Nielson Brothers PollingR+12.06.0

Polls (3)

PollsterDatenPollMiss
Nielson Brothers Polling2012-11-02633R+12.06
Nielson Brothers Polling2012-10-30671R+8.010
Nielson Brothers Polling2012-10-03762R+10.58