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Toss-up · 2020 Senate
Kansas Senate
In the 2020 Kansas Senate race, Roger Marshall (R) won by about 11 points.
Actual result
R+11.4
Final polls said
R+4.1
6 late polls · ✓
VotePredictor Elections predicted
—
Winner
Rep
"Final polls said" averages polls from the last ~3 weeks — the call right before the vote, and how pollsters are rated. VotePredictor Elections' prediction is walk-forward (trained only on earlier races).
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 | co/efficient | R+12.0 | 0.6 | ✓ |
| 2 | Civiqs | R+7.0 | 4.4 | ✓ |
| 3 | Data for Progress | R+6.0 | 5.4 | ✓ |
| 4 | The New York Times/Siena College | R+4.0 | 7.4 | ✓ |
| 5 | VCreek/AMG | R+3.6 | 7.9 | ✓ |
| 6 | Public Policy Polling | EVEN | 11.4 | ✗ |
| 7 | GBAO | D+1.0 | 12.4 | ✗ |
Forecasters — pre-election win probability, scored by Brier
| # | Forecaster | Win prob | Brier | Called |
|---|---|---|---|---|
| 1 | Elections Daily | Rep 90% | 0.010 | ✓ |
| 2 | JHK Forecasts | Rep 86% | 0.020 | ✓ |
| 3 | VotePredictor Elections | Rep 86% | 0.020 | ✓ |
| 4 | Princeton Election Consortium | Rep 84% | 0.026 | ✓ |
| 5 | The Economist | Rep 83% | 0.029 | ✓ |
| 6 | FiveThirtyEight | Rep 80% | 0.040 | ✓ |
| 7 | Cook Political | Rep 75% | 0.062 | ✓ |
| 8 | RealClearPolitics | Rep 75% | 0.062 | ✓ |
| 9 | Sabato's Crystal Ball | Rep 75% | 0.062 | ✓ |
| 10 | Race to the WH | Rep 70% | 0.090 | ✓ |
| 11 | DDHQ/Decision Desk | Rep 67% | 0.109 | ✓ |
| 12 | CNalysis | Rep 60% | 0.160 | ✓ |
| 13 | Inside Elections | Rep 60% | 0.160 | ✓ |
The polls behind it
11 polls · newest firstPollsterDateSampleMiss
Data for Progress2020-10-295
GBAO2020-10-2612
VCreek/AMG2020-10-268
Public Policy Polling2020-10-1911
co/efficient2020-10-191
Frequently asked questions
Who won the 2020 Kansas Senate race?
Roger Marshall (R) won, by about 11.4 points (R+11.4).
When was the 2020 Kansas Senate election held?
It was held in November 2020.
Which party matches you?
These candidates split on taxes, health care, guns, and abortion. See where you land — and which members of Congress actually vote like you.