Ohio Governor 2026
Short Answer
1. Market Behavior & Drivers
- Since last update (~43d): Amy Acton's model probability surged +28.4pp, driving market shifts and flipping the model-market edge.
- Vivek Ramaswamy's model probability declined -28.4pp, with market action also compressing the edge.
- The market's headline probability for the winner jumped +36.0pp over ~1022 hours.
- Confidence score remained stable at 8.0, indicating no change in overall reliability.
- Amy Acton is strongly favored by prediction markets, showing probabilities near 80%.
- Acton leads most polls; Obama's October 24 rally aims to energize Democratic turnout.
- However, Ramaswamy benefits from Ohio's Republican lean and Trump's endorsement.
Who Wins and Why
| Outcome | Market | Model | Why |
|---|---|---|---|
| Vivek Ramaswamy | 21.0% | 23.6% | Ramaswamy benefits from Ohio's Republican lean and his campaign has significantly outspent Acton on advertising. |
| Amy Acton | 80.0% | 76.4% | Prediction markets consistently favor Acton, and former President Obama is scheduled to rally for her on October 24, 2026. |
Current Context
Sources (15)
- 1Amy Acton and Vivek Ramaswamy battle for Ohio governor - Axios Clevelandaxios.com
- 2Ramaswamy's Odds Slide Amid Ad Backlashyahoo.com
- 3Ohio Governor Election 2026: Latest Pollsnytimes.com
- 4Ohio Governor winner? Odds & Predictions 2026kalshi.com
- 5A New Poll Has Amy Acton Up 7. Prediction Markets Moved to 73 Cents. Vivek Ramaswamy Has Two Weeks. - Prediction Authoritypredictionauthority.com
- 6BGSU Poll | Democracy and Public Policy Networkbgsu.edu
- 7Ohio governor polls 2026: Acton vs. Ramaswamy — every poll and the average · Call the Mapcallthemap.com
- 8Ohio Governor Polls 2026 — Latest Resultspollresults.org
- 9Ohio governor odds: Acton's chances surge to 68% over Ramaswamynews.kalshi.com
- 10Ohio’s statewide races could depend on a few counties, Brown’s return to the ballot and Trump | Ideastream Public Mediaideastream.org
- 11Ohio primary election sets the stage for Novemberohiocpa.com
- 122026 Ohio General Election | Columbus Chamber of Commercecolumbus.org
- 132026 Vote With US | Columbus Chamber of Commercecolumbus.org
- 142026VOTER GUIDEohiocapitaljournal.com
- 15OFT Votes 2026: Endorsements and Voter Information | Ohio Federation of Teachers, AFT, AFL-CIOoft-aft.org
2. Price Chart
Historical Price (Probability)
3. Market Data
Contract Snapshot
A 'Yes' resolution occurs if Amy Acton, representing the Democratic party, wins the Ohio Governor general election. A 'No' resolution occurs if Amy Acton does not win, meaning a candidate from another party wins, as the market resolves by the winning party. The general election is scheduled for November 3, 2026, with a maximum payout date of November 3, 2027.
Available Contracts
Market options and current pricing
| Outcome bucket | Yes (price) | No (price) | Last trade probability |
|---|---|---|---|
| Amy Acton | $0.80 | $0.21 | 80% |
| Vivek Ramaswamy | $0.21 | $0.80 | 21% |
Market Discussion
As of October 22, 2026, prediction markets such as Polymarket and Kalshi heavily favor Democrat Amy Acton to win the Ohio governor's race, with her probability ranging from approximately 77% to 80% [1][2][3][4][5]. This market movement toward Acton reportedly occurred after Republican Vivek Ramaswamy's campaign confirmed a controversial advertisement [6][7][8], though some sources caution that state-level markets may be thin and vulnerable to concentrated buying rather than broad voter sentiment [9]. Despite these market signals, the underlying race is considered competitive, with October 2026 polls showing varied leads for both Acton and Ramaswamy, and local reporting characterizing the November 3, 2026, Election Day contest as a toss-up [10][11][12][13][14].
Sources (14)
- 1Ohio Governor Election Winnerpolymarket.com
- 2Ohio Governor Election Winnerpredict.dex.mk
- 3Ohio Governor Election Winner Odds: Amy Acton (D) 71.5% | Polymarket Odds Todaypolymarkettrader.com
- 4Ohio Governor Race 2026: Polymarket Odds and Candidates | Vultaxapp.vultax.com
- 5Ohio Governor Race 2026: Kalshi Prices & Volumeticker-tracker.com
- 6Ohio governor race traders move toward Amy Acton after...facebook.com
- 7Vivek Ramaswamy's election odds crash to new low amid...yahoo.com
- 8Ohio gubernatorial candidate Vivek Ramaswamy (R)...facebook.com
- 9There's been a lot of talk about prediction markets in the Ohio Governor's race.linkedin.com
- 10Midterm Elections in Ohio, October 2026 - Marist Pollmaristpoll.marist.edu
- 11Ohio Governor 2026 Polls: Ramaswamy vs Acton | Politix+politixplus.com
- 12Ramaswamy Leads Acton in Ohio Governor Race · ActiVoteactivote.net
- 13What to know about Ohio's 2026 governor's racenbc4i.com
- 14Ohio governor's race could come down to the wire, political...wkyc.com
4. Trust Index
Largest single print on GOVPARTYOH-26-R carried 41% of its $1,687 tape (window is 1% of 24h flow)
Integrity risk· Large trades
Includes the cost to trade: a $10,000 order loses about 2% of the price to slippage.
Weighted blend with hard caps — a critically weak safety pillar, or a severe trading anomaly, caps the total regardless of the rest. Full methodology · About the Trust Index
5. How do Amy Acton and Vivek Ramaswamy compare on their stated policy platforms for Ohio's economy and healthcare system?
| Acton's Economic Tax Proposal | Working-families/refundable tax credit, child tax credits of roughly $500–$1,000, and middle- and lower-income tax relief [1][2][3][4] |
|---|---|
| Ramaswamy's Economic Tax Proposal | Immediate property-tax cuts and phasing out Ohio's state income tax [5][6][7] |
| Acton's Key Healthcare Initiative | Launch Ohio Rx using Medicaid purchasing power to reduce prescription prices [1][2][3][4] |
Sources (10)
- 1Affordability Planactonforgovernor.com
- 2Governor Democratic Nominee Amy Actonstateside.com
- 3Ohio governor race: Acton releases lots of affordability...statenews.org
- 4What Ohio's candidates for governor would do about...signalohio.org
- 5The Planvivekforohio.com
- 6Vivek Ramaswamy Unveils 10-Point Plan for Ohio Ahead...ohiogop.org
- 72026 Ohio Gov. Candidates Q&Aaarp.org
- 82026 Ohio Governor Voters Guideguides.vote
- 9Vivek Ramaswamy: 2026 Ohio Governor Polls & Odds | Prediction Edgepredictionedge.com
- 10Candidates for Ohio governor talk about the cure...statenews.org
6. What do late-cycle polls from October 2026 reveal about the strength and consistency of Amy Acton's lead over Vivek Ramaswamy?
| Marist Poll Lead (Acton) | 7 points (50% Acton, 43% Ramaswamy) [1][2] |
|---|---|
| Five-Poll Average Lead (Acton) | 3.4 points (48.4% Acton, 45.0% Ramaswamy) [1][2][3][4] |
| Kalshi Prediction Market Probability (Acton) | 79%-80% [5][6] |
Sources (9)
- 1Midterm Elections in Ohio, October 2026 - Marist Pollmaristpoll.marist.edu
- 22026 Polls: Ohio Governor270towin.com
- 3The Governors: Ohio to Leans Democratic Among Other...centerforpolitics.org
- 4Ramaswamy Facing Tougher Fight Than Republicans Had...time.com
- 5Ohio Governor Winner? 2026 Race Odds & Polls: Acton vs. Ramaswamy | Kalshikalshi.com
- 62026 Ohio Governor Election: Polls & Odds | Prediction Edgepredictionedge.com
- 7Ramaswamy Leads Acton in Ohio Governor Raceactivote.net
- 8Two new polls give insight into Ohio Senate, governor...wlwt.com
- 9Democrats lead in key Ohio races, poll shows10tv.com
7. What catalysts, including the October 24 Obama rally, could shift momentum in the final two weeks before the November 3, 2026 election?
| Election Date | November 3, 2026 [1][2][3][4] |
|---|---|
| Obama Rally Date | October 24, 2026 [1][2][3][4] |
| Amy Acton Implied Win Probability | 77% to 79% (as of Oct 21-22, 2026) [1][5][6][7] |
Sources (9)
- 1Ohio Governor Race & Ohio Senate Race 2026 | Acton vs...actionnetwork.com
- 2Obama headlines Cleveland rally as Ohio Dems push turnoutcleveland.com
- 3Obama to stump for Sherrod Brown, Amy Acton in Ohiodispatch.com
- 4Former President Obama adds Ohio rally in Cleveland for...statenews.org
- 5Ohio Governor Odds 2026: Acton vs. Ramaswamydefirate.com
- 6Ohio Governor Odds: Why Trading Volume Surged 5.7x | Prediction.comprediction.com
- 7https://polymarket.com/event/ohio-governor-winner-2026polymarket.com
- 82026 Ohio Elections, Odds & Candidates | Prediction Edgepredictionedge.com
- 9Amy Acton: 2026 Ohio Governor Polls & Odds | Prediction Edgepredictionedge.com
8. How does reported ad spending by the Ramaswamy and Acton campaigns compare for the final quarter of 2026, and which media markets are they targeting?
| Ramaswamy Total Ad Spending | More than $120 million (from campaign and allied groups) [1][2] |
|---|---|
| Pro-Acton Ad Spending Projection | About $11.1 million (television and digital advertising) [3] |
| Identified Media Markets | Cleveland, Columbus, Cincinnati, and Dayton [4] |
Sources (7)
- 1Acton vs Ramaswamy Polls: Marist Lead and Acton's 77% Odds | Prediction.comprediction.com
- 2Scan: Will the Republican party win the governorship in Ohio — Vivek Ramaswamy — Forecasting Agentforecast.agenticlearning.ai
- 3Jeffrey Yass Adds $10 Million to Ohio Governor Race PAC - El-Balad.comel-balad.com
- 4Ohio Governor Race: Candidates, Polls, and Key Issues - LegalClaritylegalclarity.org
- 5Vivek Ramaswamy Campaign Will Spend $4 Million To Air...forbes.com
- 6Vance defends Ramaswamy's explosive attack ad in Ohio...reuters.com
- 7Ramaswamy doubles down on ad featuring rival's motheraxios.com
9. What is the evidence-based case for a Vivek Ramaswamy victory, considering Ohio's Republican fundamentals and the impact of Donald Trump's support?
| Ramaswamy Primary Win | approximately 82% of the vote [1] |
|---|---|
| Trump's 2024 Ohio Win Margin | roughly 8–12 points [2] |
| Acton's Market Odds (Oct 21) | around 77% [3] |
Sources (12)
- 1Vivek Ramaswamy's Ohio Governor Bid: Can He Win Over...nytimes.com
- 2Trump, Vance blitz Ohio as Democrats look to flip...thehill.com
- 3Acton vs Ramaswamy Polls: Marist Lead and Acton's 77% Odds | Prediction.comprediction.com
- 4Ramaswamy's personality, Trump's revenge define Ohio...usatoday.com
- 5Will a Democrat Win the Ohio Governor Race? Winner Odds | Lines.comlines.com
- 6Ohio Governor Odds 2026: Acton Vs Ramaswamy Verdict | OddsShopperoddsshopper.com
- 7Ohio Governor Election 2026: Latest Pollsnytimes.com
- 8BGSU Poll | Democracy and Public Policy Networkbgsu.edu
- 92026 Ohio gubernatorial electionen.wikipedia.org
- 10Vivek Ramaswamy gets boost after five Ohio polling blows...newsweek.com
- 11Ramaswamy Facing Tougher Fight Than Republicans Had...time.com
- 12What to know about Ohio's 2026 governor's racenbc4i.com
10. What Could Change the Odds
Key Catalysts
Key Dates & Catalysts
- Expiration: November 03, 2027
- Closes: November 03, 2027
Sources (11)
- 1Ohio Governor Election Winnerpolymarket.com
- 2Ohio Governor 2026 — Candidates, Ratings, Polls & Odds | Midterm Mondaysmidtermmonday.com
- 3Ohio Governor Election 2026: Latest Pollsnytimes.com
- 4Ohio gubernatorial and lieutenant gubernatorial election, 2026 - Ballotpediaballotpedia.org
- 52026 Ohio gubernatorial electionen.wikipedia.org
- 62026 Ohio governor's race — polls, candidates & voter guide — IJRijr.com
- 7Ohio’s statewide races could depend on a few counties, Brown’s return to the ballot and Trump | Ideastream Public Mediaideastream.org
- 8Ohio Democrats' path to governor's office runs through rural areas that have turned against party | PBS Newspbs.org
- 9Six Gubernatorial Rating Changes in Favor of Democrats, but Republicans May Still Come Out Ahead - Sabato's Crystal Ballcenterforpolitics.org
- 10Why Ohio is such a competitive state this year - The Washington Postwashingtonpost.com
- 112026 OHIO ELECTIONS CALENDARohiosos.gov