VotePredictor
past elections

South Dakota Senate

Tim Johnson (D) vs John R. Thune (R)

Actual result
D+0.2
Final polls said
R+0.2
9 late polls · ✗
Model predicted
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
1Public Opinion StrategiesR+0.10.3
2Mason-Dixon Polling & StrategyD+2.01.8
3GQRD+2.01.8
4Jim Meader (KELOLAND-TV)D+3.02.8
5GallupR+3.03.2
6CBS NewsR+3.03.2
7Zogby AnalyticsR+4.04.2
8OnMessage Inc.R+5.05.2

Polls (16)

PollsterDatenPollMiss
Public Opinion Strategies2002-11-03679R+0.10
Zogby Analytics2002-11-03500R+4.04
Gallup2002-11-01685R+3.03
Zogby Analytics2002-11-01500D+4.04
Public Opinion Strategies2002-10-28500R+3.03
Mason-Dixon Polling & Strategy2002-10-26805D+2.02
Public Opinion Strategies2002-10-25500R+3.03
GQR2002-10-22553D+2.02
Jim Meader (KELOLAND-TV)2002-10-21600D+3.03
CBS News2002-10-10874R+3.03
Zogby Analytics2002-10-10500R+2.02
Jim Meader (KELOLAND-TV)2002-10-04600D+3.03
OnMessage Inc.2002-10-01679R+5.05
Public Opinion Strategies2002-09-26400R+5.05
Mason-Dixon Polling & Strategy2002-09-18805D+1.01
Zogby Analytics2002-09-16500D+3.03