VotePredictor
past elections

Ohio Senate

Mary Boyle (D) vs George V. Voinovich (R)

Actual result
R+12.9
Final polls said
R+18.9
7 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+18.05.1
2Harris Insights & AnalyticsR+19.06.1
3Gordon S. Black Corp.R+23.010.1
4Columbus DispatchR+2.010.9
5University of Cincinnati (Ohio Poll)R+24.011.1

Polls (14)

PollsterDatenPollMiss
Harris Insights & Analytics1998-10-302149R+19.06
Columbus Dispatch1998-10-27800R+2.011
Mason-Dixon Polling & Strategy1998-10-26815R+18.05
University of Cincinnati (Ohio Poll)1998-10-261196R+24.011
University of Cincinnati (Ohio Poll)1998-10-24733R+28.015
Harris Insights & Analytics1998-10-201793R+18.05
Gordon S. Black Corp.1998-10-181012R+23.010
University of Cincinnati (Ohio Poll)1998-10-13540R+28.015
University of Cincinnati (Ohio Poll)1998-10-04405R+23.010
Mason-Dixon Polling & Strategy1998-10-04805R+19.06
Columbus Dispatch1998-09-282436R+14.01
University of Cincinnati (Ohio Poll)1998-09-14521R+31.018
Mason-Dixon Polling & Strategy1998-09-13817R+28.015
Gordon S. Black Corp.1998-09-121005R+17.04