Following the May 5 primaries, biotech entrepreneur Vivek Ramaswamy clinched the Republican nomination with 82% amid an open-seat race after term-limited Gov. Mike DeWine, while former state health director Amy Acton secured the Democratic nod unopposed, setting up a general election on November 3. Polymarket traders reflect this closely contested matchup—pricing Democrats at 53.5% versus Republicans at 47.5%—despite pre-primary polling averages (e.g., RealClearPolitics Acton +0.3, 270toWin Ramaswamy +3) showing a statistical tie or slight GOP lean in the red-leaning state where Democrats last won in 2006. Intensifying post-primary attack ads highlight candidate contrasts, with Ramaswamy's national profile versus Acton's local experience; upcoming debates, fundraising edges, endorsements, and midterm national trends could create separation among independents and in battleground suburbs.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$92,621 Vol.
$92,621 Vol.

Democrat
54%

Republican
48%
$92,621 Vol.
$92,621 Vol.

Democrat
54%

Republican
48%
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Market Opened: Oct 13, 2025, 5:45 PM ET
Resolver
0x2F5e3684c...A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Resolver
0x2F5e3684c...Following the May 5 primaries, biotech entrepreneur Vivek Ramaswamy clinched the Republican nomination with 82% amid an open-seat race after term-limited Gov. Mike DeWine, while former state health director Amy Acton secured the Democratic nod unopposed, setting up a general election on November 3. Polymarket traders reflect this closely contested matchup—pricing Democrats at 53.5% versus Republicans at 47.5%—despite pre-primary polling averages (e.g., RealClearPolitics Acton +0.3, 270toWin Ramaswamy +3) showing a statistical tie or slight GOP lean in the red-leaning state where Democrats last won in 2006. Intensifying post-primary attack ads highlight candidate contrasts, with Ramaswamy's national profile versus Acton's local experience; upcoming debates, fundraising edges, endorsements, and midterm national trends could create separation among independents and in battleground suburbs.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



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