Kalshi
PolymarketOhio Governor 2026: Amy Acton Won the Open Seat the Venues Had Priced as Hers
Amy Acton won the 2026 Ohio governor race. The Associated Press declared the Democrat the winner over Vivek Ramaswamy at 10:45 p.m. on November 3, 2026, as Signal Ohio reported, and CBS News and NBC News also projected her the winner. With every Election Day precinct reporting, the Ohio Secretary of State's unofficial results, read at 9:52 a.m. Eastern on November 5, 2026, gave Acton 2,404,178 votes, or 52.3% of the vote, to Ramaswamy's 2,039,730, or 44.4%, a margin of 364,448 votes, with Libertarian Don Kissick at 151,874. The venues had priced that outcome going in: on November 2, 2026, Kalshi and Polymarket both had the Democratic contract at 83% and the Republican contract at 18%, which made Acton about a four-in-five favorite, and on November 4, 2026 both venues quoted the Democratic contract at 100%. The count is unofficial until the Secretary of State certifies it after the county boards finish their official canvass.
The market treats the 2026 Ohio governor race between Amy Acton and Vivek Ramaswamy as the Democrats' best statewide opening of the year, and the closing board shows what the price says about Ohio: an open seat matters more than the state's recent lean. Mike DeWine has been governor since January 14, 2019, per Wikidata, and his name was on neither party's May 5, 2026 primary ballot, so the November 3, 2026 election picked his successor from Amy Acton, the Democrat, and Vivek Ramaswamy, the Republican. Cook Political Report, Inside Elections and Sabato's Crystal Ball all moved the race to the Democratic side of even in the second half of October, and the venues priced the Democrat further from even than any of them. The live board above carries the final prices from Kalshi and Polymarket.
Why the Ohio Governor Price Leaned Democratic
The two nominations came out of very different primaries. On May 5, 2026, by the official canvass, Acton and her running mate David Pepper were unopposed on the Democratic side and drew 767,360 votes. On the Republican side Ramaswamy and Robert A. McColley beat Casey Putsch and Kimberly C. Georgeton with 676,562 votes, 82.4% of the Republican vote for the office. A comfortable primary win is not a general-election signal on its own, and an unopposed ticket tells you even less, but together they meant both parties arrived in November with the tickets they chose and without a contested convention to repair.
The lean rests on the polling, and the last stretch of it pointed one way. Survey 160, in the field October 27 to November 1, 2026, had Acton ahead by eight points. Research Co., polling 450 likely voters October 30 to November 1, had her ahead 53 to 46 among decided voters. The Suffolk University and USA TODAY Network Ohio poll of October 21 to 26 had her ahead 48 to 44, with Don Kissick, the Libertarian, at 4, and Marist's poll of October 15 to 18 had her seven points up among likely voters. The summer was closer: a Siena poll taken June 15 to 28, 2026 for The New York Times had the two tied at 47, and only in September did nearly every release move to Acton, SSRS by 50 to 42 and Siena by 49 to 45. The exceptions in the fall were few: co/efficient, polling October 5 to 6, had Ramaswamy ahead 45 to 43, and Echelon Insights, October 16 to 23, had him ahead 47 to 45.
On October 12, 2026, Kalshi and Polymarket both had the Democratic contract at 69%, and Polymarket had the cheaper Yes on the Republican side, the contract the board labels with Ramaswamy's name, at 31% against Kalshi's 32%. That was already a price of better than two chances in three for the Democrat in a state that voted for Donald Trump in 2016, 2020 and 2024. The venues then kept going. On October 23, 2026, Kalshi had the Democratic contract at 82%, and on November 2, 2026, Kalshi and Polymarket both had it at 83% and both had the Republican contract at 18%. A thirteen-point rise in eleven days, followed by a single point over the final ten, meant the venues treated an Acton win as roughly a four-in-five chance and had not priced any late tightening, even as Suffolk's margin narrowed.
The forecasters traveled the same road, more slowly. Sabato's Crystal Ball moved the race to Leans Democratic on its map updated October 22, 2026, the first forecaster on file to move off even. Cook Political Report followed with Lean Democratic on October 29, 2026 and Inside Elections with Tilt Democratic the same day, per the ratings table on the race's Wikipedia page, while RealClearPolitics still listed a toss-up on October 30 and the Silver Bulletin model rated it Likely Democratic on November 1. The structure of the race, then, was a market that got to the Democrat before the forecasters did and stayed further along: a Lean rating describes a favorite who wins more often than not, and the board described one who wins four times in five.
There is a comparison inside the state that sharpens the read. The same pollsters tested the Senate special election on the same ballot, and in each of the four final surveys cited above Acton's lead was larger than Sherrod Brown's: eight points to five for Survey 160, seven to one among Research Co.'s decided voters, four to three for Suffolk, and seven to four among Marist's likely voters. That is why the venues priced the governor's race further from even than the Ohio Senate race: two Democrats running in the same environment, one of them against an appointed incumbent and the other for a seat with no incumbent at all. The unofficial count kept the same order, with Acton's margin wider than Sherrod Brown's.
The ballot carries more than two tickets. The Lake County Board of Elections candidate list, updated October 15, 2026, names three nominated tickets, Acton and David Pepper (Democratic), Ramaswamy and Robert A. McColley (Republican) and Don Kissick and James L. Mills (Libertarian), plus three write-in tickets. Kissick's 4 in Suffolk's late October survey looked like the size of the margin in a race the same poll put at four points; in the unofficial count he drew 151,874 votes, well under half of the gap between the two major-party tickets.
The Case Against the Ohio Governor Read
The strongest case against the market before the vote was that it had priced a polling lead the final surveys showed narrowing, in a state built to resist it. Suffolk's lead for Acton shrank from nine points in its September survey to four in its October 21 to 26 survey, Echelon Insights had Ramaswamy ahead by two in a poll taken October 16 to 23, and co/efficient had him ahead by two in early October. A reader who holds that view would say that a four-point lead sits inside most of these polls' margins of error, that the Libertarian vote tends to come home late, and that an Ohio electorate which has voted Republican for president three times running does not need to like the Republican nominee to vote for him. On that reading the fair price was the Lean rating that Cook and Sabato's Crystal Ball printed in late October, or RealClearPolitics' toss-up, and an 83% price on Kalshi on November 2, 2026 was a cycle's worth of enthusiasm ahead of the evidence. The unofficial count answered that case on the night: Acton's margin of about eight points was twice Suffolk's final four, and the Libertarian vote did not close the gap. What the case still gets right is that a four-in-five price leaves a one-in-five chance, and a single result does not show that the price was well calibrated, only that the favorite won.
What Changes the Ohio Governor Read
The read would be wrong now only if the official count reversed the unofficial one, and a margin of 364,448 votes leaves that a long way off. The dated, observable steps still ahead:
• Outstanding ballots: the Secretary of State's ballots-cast summary, read November 5, 2026, listed 98,369 outstanding provisional ballots and 3,779 outstanding overseas and military absentee ballots statewide, together fewer than a third of Acton's margin. Overseas and military ballots sent by mail have up to four days after Election Day to arrive.
• The canvass: the Secretary of State says the official canvass is completed about three weeks after the election and that results are unofficial until it certifies them; no certification date is published on the results page.
• A recount: Ohio Revised Code 3515.011 orders an automatic recount in a statewide race only when the margin is under one-fourth of one percent of the total vote, and the unofficial margin is about 7.9 points.
• Settlement: Polymarket's rule asks for calls from the Associated Press, Fox News and NBC; Kalshi pays on the party of the governor inaugurated, lists an expected settlement of January 14, 2027, and allows accelerated determination on a consensus media projection.
When the Ohio Governor Market Resolves
The venues settle the same question on different events. Kalshi resolves its Democratic contract Yes if a representative of the Democratic party is inaugurated as governor of Ohio pursuant to the 2026 election, resolves the Republican contract on the same test for the Republican party, lists an expected settlement of January 14, 2027, and is eligible for accelerated determination after a consensus of media organizations projects the winner. Polymarket resolves on the winner of the 2026 gubernatorial election once the Associated Press, Fox News and NBC have all called the race for the same candidate, and on the official certification if they have not; a candidate represents a party only as its nominee, and independents count for neither party. Each venue's own rules govern its contracts.
Related Ohio Governor and Election Markets
The Ohio Senate special election shared the ballot and most of the same pollsters, and the venues priced it closer to even. Down the ballot, Sabato's Crystal Ball, in its House ratings updated October 30, 2026, had rated the Ohio 7th District and the Ohio 9th District as toss-ups and the Ohio 10th District and the Ohio 15th District as Leans Republican, with the Ohio 1st District and the Ohio 13th District at Leans Democratic; each of those pages now carries its own district's count. All of them are on the elections hub, with the rest of the state's coverage under politics.
