Incumbent Democrat Greg Landsman holds a strong position in Ohio’s 1st congressional district heading into the November 3 general election, backed by incumbency advantages, superior fundraising, and a recent polling lead. The district, redrawn in 2025 to include additional Republican-leaning territory in Warren and Clinton counties, shifted the baseline toward Republicans, yet Landsman defeated a primary challenger decisively while Republican nominee Eric Conroy, endorsed by former President Trump, secured his nomination. Forecasters rate the race Lean or Tilt Democratic, reflecting Landsman’s established local profile and campaign resources against Conroy’s challenge in this competitive Cincinnati-area seat. Trader consensus on Polymarket aligns with these factors, pricing in limited volatility absent major late developments.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$34,543 Vol.
$34,543 Vol.
Greg Landsman (D)
89%
Eric Conroy (R)
10%
$34,543 Vol.
$34,543 Vol.
Greg Landsman (D)
89%
Eric Conroy (R)
10%
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 Democrat Greg Landsman holds a strong position in Ohio’s 1st congressional district heading into the November 3 general election, backed by incumbency advantages, superior fundraising, and a recent polling lead. The district, redrawn in 2025 to include additional Republican-leaning territory in Warren and Clinton counties, shifted the baseline toward Republicans, yet Landsman defeated a primary challenger decisively while Republican nominee Eric Conroy, endorsed by former President Trump, secured his nomination. Forecasters rate the race Lean or Tilt Democratic, reflecting Landsman’s established local profile and campaign resources against Conroy’s challenge in this competitive Cincinnati-area seat. Trader consensus on Polymarket aligns with these factors, pricing in limited volatility absent major late developments.
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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