Incumbent Democratic Rep. Greg Landsman holds a clear edge in Ohio’s 1st congressional district, where multiple forecasters rate the race Lean or Tilt Democratic ahead of the November 3, 2026 general election. Recent polling from Quantus Insights shows Landsman leading Republican nominee Eric Conroy by low-to-mid single digits among likely voters, consistent with the district’s post-redistricting partisan voting index of R+1 and Landsman’s 2024 reelection margin. Both candidates secured their nominations in the May primaries, with Trump’s endorsement of Conroy failing to materially alter the competitive landscape. Trader consensus reflected in current pricing aligns with these fundamentals and the absence of major late-cycle disruptions that could shift momentum toward Republicans.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedOH-01 House Election Winner
$20,830 Vol.
$20,830 Vol.
Democratic Party
89%
Republican Party
11%
$20,830 Vol.
$20,830 Vol.
Democratic Party
89%
Republican Party
11%
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Market Opened: Dec 16, 2025, 12:48 PM ET
Resolver
0x2F5e3684c...A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Resolver
0x2F5e3684c...Incumbent Democratic Rep. Greg Landsman holds a clear edge in Ohio’s 1st congressional district, where multiple forecasters rate the race Lean or Tilt Democratic ahead of the November 3, 2026 general election. Recent polling from Quantus Insights shows Landsman leading Republican nominee Eric Conroy by low-to-mid single digits among likely voters, consistent with the district’s post-redistricting partisan voting index of R+1 and Landsman’s 2024 reelection margin. Both candidates secured their nominations in the May primaries, with Trump’s endorsement of Conroy failing to materially alter the competitive landscape. Trader consensus reflected in current pricing aligns with these fundamentals and the absence of major late-cycle disruptions that could shift momentum toward Republicans.
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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