VotePredictor
past elections

South Dakota House

Stephanie Herseth Sandlin (D) vs William J. Janklow (R)

Actual result
R+7.9
Final polls said
R+5.0
2 late polls · ✓
Model predicted
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
1Mason-Dixon Polling & StrategyR+5.02.9
2Jim Meader (KELOLAND-TV)R+5.02.9

Polls (4)

PollsterDatenPollMiss
Mason-Dixon Polling & Strategy2002-10-26805R+5.03
Jim Meader (KELOLAND-TV)2002-10-21600R+5.03
Jim Meader (KELOLAND-TV)2002-10-04600D+4.012
Mason-Dixon Polling & Strategy2002-09-18800R+7.01