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icon for OH-09 House Election Winner
Politics·Midterms

OH-09 House Election Winner

icon for OH-09 House Election Winner
Politics·Midterms

OH-09 House Election Winner

Polymarket

$31,714 Vol.

Polymarket

$31,714 Vol.

Marcy Kaptur (D)

$5,652 Vol.

68%

Derek Merrin (R)

$26,061 Vol.

31%

This market will resolve according to the party of the candidate who wins the OH-09 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026. ​​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/).Incumbent Marcy Kaptur faces Republican challenger Derek Merrin in the November 3, 2026, general election for Ohio’s 9th Congressional District. Redistricting shifted the seat toward a more Republican-leaning profile, with Donald Trump carrying the new lines by roughly 11 points in 2024, though Kaptur has a record of outperforming the partisan baseline in prior cycles. Merrin won the GOP primary and received Trump’s endorsement afterward, while both candidates have focused on manufacturing, jobs, taxes, and immigration. Kaptur maintains a substantial fundraising lead and benefits from long incumbency since 1983. Forecasters rate the race as a toss-up or slight lean in either direction, and trader pricing reflects Kaptur’s structural advantages alongside Merrin’s path through national Republican messaging and the altered district map.

This market will resolve according to the party of the candidate who wins the OH-09 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026.

​​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/).This market will resolve according to the party of the candidate who wins the OH-09 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026. ​​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/).
Volume
$31,714
End Date
Nov 4, 2026
Market Opened
Dec 16, 2025, 12:48 PM ET

Resolver

0x2F5e3684c...
This market will resolve according to the party of the candidate who wins the OH-09 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026. ​​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/).Incumbent Marcy Kaptur faces Republican challenger Derek Merrin in the November 3, 2026, general election for Ohio’s 9th Congressional District. Redistricting shifted the seat toward a more Republican-leaning profile, with Donald Trump carrying the new lines by roughly 11 points in 2024, though Kaptur has a record of outperforming the partisan baseline in prior cycles. Merrin won the GOP primary and received Trump’s endorsement afterward, while both candidates have focused on manufacturing, jobs, taxes, and immigration. Kaptur maintains a substantial fundraising lead and benefits from long incumbency since 1983. Forecasters rate the race as a toss-up or slight lean in either direction, and trader pricing reflects Kaptur’s structural advantages alongside Merrin’s path through national Republican messaging and the altered district map.

This market will resolve according to the party of the candidate who wins the OH-09 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026.

​​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/).This market will resolve according to the party of the candidate who wins the OH-09 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026. ​​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/).
Volume
$31,714
End Date
Nov 4, 2026
Market Opened
Dec 16, 2025, 12:48 PM ET

Resolver

0x2F5e3684c...

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Frequently Asked Questions

"OH-09 House Election Winner" is a prediction market on Polymarket with 2 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "Marcy Kaptur (D)" at 68%, followed by "Derek Merrin (R)" at 31%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 68¢ implies that the market collectively assigns a 68% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "OH-09 House Election Winner" has generated $31.7K in total trading volume since the market launched on Dec 16, 2025. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "OH-09 House Election Winner," browse the 2 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "OH-09 House Election Winner" is "Marcy Kaptur (D)" at 68%, meaning the market assigns a 68% chance to that outcome. The next closest outcome is "Derek Merrin (R)" at 31%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "OH-09 House Election Winner" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.