VotePredictor
past elections

Maryland Governor

Martin O'Malley (D) vs Robert Ehrlich Jr. (R)

Actual result
D+14.5
Final polls said
D+12.7
3 late polls · ✓
Model predicted
D+10.3
Winner
Dem

"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
1ABC News/The Washington PostD+14.00.5
2OpinionWorksD+14.00.5
3VotePredictorD+10.34.2
4Scott Rasmussen (Rasmussen Reports)D+10.04.5
5Gonzales Research & Marketing Strategies Inc.D+5.09.5

Polls (7)

PollsterDatenPollMiss
Scott Rasmussen (Rasmussen Reports)2010-10-24750D+10.04
ABC News/The Washington Post2010-10-211434D+14.00
OpinionWorks2010-10-17800D+14.00
Gonzales Research & Marketing Strategies Inc.2010-10-13816D+5.09
Scott Rasmussen (Rasmussen Reports)2010-10-04750D+8.06
ABC News/The Washington Post2010-09-24730D+11.03
Scott Rasmussen (Rasmussen Reports)2010-09-15750D+3.011