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Toss-up · 2020 Senate
South Dakota Senate
In the 2020 South Dakota Senate race, M. Michael Rounds (R) won by about 31 points.
Actual result
R+31.5
Final polls said
R+17.0
1 late poll · ✓
VotePredictor Elections predicted
—
Winner
Rep
"Final polls" = the last ~3 weeks; the prediction is walk-forward. How this is scored →
Final rankings
How everyone who called this race did, ranked — VotePredictor Elections shown inline (★).
Pollsters — each pollster's final poll vs the result
| # | Pollster | Final call | Miss | Called |
|---|---|---|---|---|
| 1 | Nielson Brothers Polling | R+17.0 | 14.5 | ✓ |
Forecasters — pre-election win probability, scored by Brier
| # | Forecaster | Win prob | Brier | Called |
|---|---|---|---|---|
| 1 | CNalysis | Rep 99% | 0.000 | ✓ |
| 2 | Cook Political | Rep 99% | 0.000 | ✓ |
| 3 | The Economist | Rep 100% | 0.000 | ✓ |
| 4 | Elections Daily | Rep 99% | 0.000 | ✓ |
| 5 | FiveThirtyEight | Rep 99% | 0.000 | ✓ |
| 6 | Inside Elections | Rep 99% | 0.000 | ✓ |
| 7 | JHK Forecasts | Rep 100% | 0.000 | ✓ |
| 8 | Princeton Election Consortium | Rep 100% | 0.000 | ✓ |
| 9 | Race to the WH | Rep 100% | 0.000 | ✓ |
| 10 | RealClearPolitics | Rep 99% | 0.000 | ✓ |
| 11 | Sabato's Crystal Ball | Rep 99% | 0.000 | ✓ |
| 12 | VotePredictor Elections | Rep 100% | 0.000 | ✓ |
| 13 | DDHQ/Decision Desk | Rep 96% | 0.002 | ✓ |
The polls behind it
1 poll · newest firstPollsterDateSampleMiss
Nielson Brothers Polling2020-10-2614
Frequently asked questions
Who won the 2020 South Dakota Senate race?
M. Michael Rounds (R) won, by about 31.5 points (R+31.5).
When was the 2020 South Dakota Senate election held?
It was held in November 2020.