{
  "_notice": {
    "type": "free_key_offer",
    "message": "Free and anonymous access is staying. If this endpoint is in your pipeline, a free key adds advance notice before any schema change or deprecation. POST /v1/keys {\"email\": \"you@firm.com\"} — nothing else required. Something broken or missing? hello@clearmarket.fyi reaches a human.",
    "docs": "https://clearmarket.fyi/for-data/",
    "policy": "This field is additive and its shape will not change."
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  "event_id": "CM-EVT-SLBCF12M20",
  "slug": "or-01-house-election-winner",
  "question": "Will the OR-01 House seat be won by a Democrat in the 2026 election?",
  "category": "politics",
  "event_type": "BINARY",
  "ladder_distribution": null,
  "tags": [
    "politics",
    "elections",
    "2026-us-midterms",
    "oregon",
    "house-race",
    "congressional-seat"
  ],
  "catalyst_types": [],
  "catalyst_dates": [],
  "editorial_notes": "These markets track the 2026 general election outcome for Oregon's 1st Congressional District House seat. Party-level markets price Republican, Democratic, and third-party outcomes; candidate-level markets price individual named contenders. All eight markets resolve via Polymarket's UMA Optimistic Oracle against Federal Election Commission official results. Resolution is set for November 3, 2026.",
  "venues_covered": [
    "polymarket"
  ],
  "primary_market_id": "CM-MKT-LKXGCVQQ31",
  "current_primary_mark": {
    "last_price": 0.96,
    "implied_probability": 0.96
  },
  "created_at": "2026-07-23T21:11:14.426158+00:00",
  "updated_at": "2026-07-23T21:11:14.426158+00:00",
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      "market_id": "CM-MKT-R4GY1SVB34",
      "event_id": "CM-EVT-SLBCF12M20",
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      "platform_market_id": "0x008d44ae7c3cbbcc38d551ddcbe91ab34d9003b52c3a50e9f9c49e89c02a6207",
      "question": "Will the Republican Party win the OR-01 House seat?",
      "description": "This market will resolve according to the party of the candidate who wins the OR-01 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.\n\n​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 p",
      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "Republican Party: Federal Election Commission official results for the OR-01 House seat, conclusively determined by November 3, 2026, resolving by the winner's ballot-listed party affiliation.",
      "close_at": "2026-11-03T00:00:00Z",
      "resolve_at": "2026-11-03T00:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "This market will resolve according to the party of the candidate who wins the OR-01 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.\n\n​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.\n\nThis 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/).",
        "arbitration_model": "uma_oracle",
        "proposer": "managed_whitelist",
        "source": null,
        "source_status": "platform_named",
        "source_citation": "https://www.fec.gov/",
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            "url": "https://www.fec.gov/",
            "provenance": "platform_api"
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          {
            "name": "Federal Election Commission (https://www.fec.gov/)",
            "url": null,
            "provenance": "clearmarket_editorial"
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        "source_of_record": "Federal Election Commission",
        "source_mechanism": "precedence",
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        "source_quality": null,
        "source_commitment": "named",
        "source_commitment_subtype": "named",
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      "rcg": {
        "grade": "B",
        "score": 68,
        "caps": [],
        "applied_factors": 6
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      "last_price": 0.06,
      "implied_probability": 0.06,
      "volume_24h_usd": 0,
      "volume_total_usd": 1998.5262799999998,
      "settlement_style": "occurrence",
      "direction": "occurrence",
      "threshold": null,
      "question_id": null,
      "also_on": null,
      "tags": [
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        "election",
        "house",
        "or-01",
        "republican party"
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      "eligibility_screens": null
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      "question": "Will the Democratic Party win the OR-01 House seat?",
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      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "Democratic Party: Federal Election Commission official results for the OR-01 House seat, conclusively determined by November 3, 2026, resolving by the winner's ballot-listed party affiliation.",
      "close_at": "2026-11-03T00:00:00Z",
      "resolve_at": "2026-11-03T00:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "This market will resolve according to the party of the candidate who wins the OR-01 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.\n\n​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.\n\nThis 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/).",
        "arbitration_model": "uma_oracle",
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        "score": 68,
        "caps": [],
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      "implied_probability": 0.96,
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      "tags": [
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      "question": "Will another party win the OR-01 House seat?",
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      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "Other: Federal Election Commission official results for the OR-01 House seat, conclusively determined by November 3, 2026, resolving by the winner's ballot-listed party affiliation.",
      "close_at": "2026-11-03T00:00:00Z",
      "resolve_at": "2026-11-03T00:00:00Z",
      "status": "closed",
      "resolution": {
        "rules_raw": "This market will resolve according to the party of the candidate who wins the OR-01 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.\n\n​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.\n\nThis 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/).",
        "arbitration_model": "uma_oracle",
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      "rcg": {
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        "score": 68,
        "caps": [],
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      "settlement_style": "occurrence",
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      "tags": [
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        "other party"
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      "eligibility_screens": null
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    {
      "market_id": "CM-MKT-HMNR7HJ5H5",
      "event_id": "CM-EVT-SLBCF12M20",
      "platform": "polymarket",
      "platform_market_id": "0x8479159935217d4ef043eb8ed700328ce873c8befaa8081f4272059ead86683b",
      "question": "Will A win the OR-01 House seat?",
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      "settlement_currency": "USDC",
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      "close_at": "2026-11-03T00:00:00Z",
      "resolve_at": "2026-11-03T00:00:00Z",
      "status": "closed",
      "resolution": {
        "rules_raw": "This market will resolve according to the party of the candidate who wins the OR-01 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.\n\n​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.\n\nThis 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/).",
        "arbitration_model": "uma_oracle",
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      "rcg": {
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        "score": 68,
        "caps": [],
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    {
      "market_id": "CM-MKT-Q3SZ6B1RZ9",
      "event_id": "CM-EVT-SLBCF12M20",
      "platform": "polymarket",
      "platform_market_id": "0x97d1722741a1f553414f1b607a92f7140235cb7441dad4187ce62c9eeacadab4",
      "question": "Will B win the OR-01 House seat?",
      "description": "This market will resolve according to the party of the candidate who wins the OR-01 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.\n\n​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 p",
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      "close_at": "2026-11-03T00:00:00Z",
      "resolve_at": "2026-11-03T00:00:00Z",
      "status": "closed",
      "resolution": {
        "rules_raw": "This market will resolve according to the party of the candidate who wins the OR-01 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.\n\n​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.\n\nThis 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/).",
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    {
      "market_id": "CM-MKT-41VCDX4LL2",
      "event_id": "CM-EVT-SLBCF12M20",
      "platform": "polymarket",
      "platform_market_id": "0x45f76e3254270b0a8d658064d888fd7f465a810fb22e1a1cfdf7d1eb99605030",
      "question": "Will C win the OR-01 House seat?",
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      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "C: Federal Election Commission official results for the OR-01 House seat, conclusively determined by November 3, 2026, resolving by the winner's ballot-listed party affiliation.",
      "close_at": "2026-11-03T00:00:00Z",
      "resolve_at": "2026-11-03T00:00:00Z",
      "status": "closed",
      "resolution": {
        "rules_raw": "This market will resolve according to the party of the candidate who wins the OR-01 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.\n\n​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.\n\nThis 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/).",
        "arbitration_model": "uma_oracle",
        "proposer": "managed_whitelist",
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      "rcg": {
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      "tags": [
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    {
      "market_id": "CM-MKT-H2RCVC6KF4",
      "event_id": "CM-EVT-SLBCF12M20",
      "platform": "polymarket",
      "platform_market_id": "0x079532e1108cb7e124c5dc5bca4879be3528036e11a077bbb9519c84ca05af3f",
      "question": "Will D win the OR-01 House seat?",
      "description": "This market will resolve according to the party of the candidate who wins the OR-01 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.\n\n​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 p",
      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "D: Federal Election Commission official results for the OR-01 House seat, conclusively determined by November 3, 2026, resolving by the winner's ballot-listed party affiliation.",
      "close_at": "2026-11-03T00:00:00Z",
      "resolve_at": "2026-11-03T00:00:00Z",
      "status": "closed",
      "resolution": {
        "rules_raw": "This market will resolve according to the party of the candidate who wins the OR-01 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.\n\n​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.\n\nThis 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/).",
        "arbitration_model": "uma_oracle",
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            "url": null,
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      "settlement_currency": "USDC",
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      "close_at": "2026-11-03T00:00:00Z",
      "resolve_at": "2026-11-03T00:00:00Z",
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      "resolution": {
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}