{
  "_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-KRXYK9JQW8",
  "slug": "or-04-house-election-winner",
  "question": "Will the Republican or Democratic candidate win Oregon's 4th Congressional District House seat in the 2026 election?",
  "category": "politics",
  "event_type": "BINARY",
  "ladder_distribution": null,
  "tags": [
    "politics",
    "elections",
    "house-races",
    "oregon",
    "2026",
    "us-congress"
  ],
  "catalyst_types": [],
  "catalyst_dates": [],
  "editorial_notes": "These markets track the outcome of the Oregon 4th Congressional District House race, resolving November 3, 2026. Polymarket lists both party-level markets and candidate-specific markets for the same seat. The party markets aggregate across named candidates; the candidate markets price individual winner probability. All resolve via Polymarket's UMA Optimistic Oracle against Federal Election Commission official results.",
  "venues_covered": [
    "polymarket"
  ],
  "primary_market_id": "CM-MKT-SW0DVM1RR5",
  "current_primary_mark": {
    "last_price": 0.93,
    "implied_probability": 0.93
  },
  "created_at": "2026-07-06T00:30:45.836226+00:00",
  "updated_at": "2026-07-06T00:30:45.836226+00:00",
  "markets": [
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      "event_id": "CM-EVT-KRXYK9JQW8",
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      "platform_market_id": "0x8f93fdaafe6fec9c25d099b0f63a062b4fa8dcccf5550d5ca596709d56137526",
      "question": "Will the Democratic Party win the OR-04 House seat?",
      "description": "This market will resolve according to the party of the candidate who wins the OR-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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": "Democratic Party: The Federal Election Commission's official election results determine which party's candidate wins the named House district seat in the November 2026 midterm elections.",
      "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-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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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        "source_of_record": "Federal Election Commission",
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      "rcg": {
        "grade": "B",
        "score": 68,
        "caps": [],
        "applied_factors": 6
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      "last_price": 0.93,
      "implied_probability": 0.93,
      "volume_24h_usd": 0,
      "volume_total_usd": 9901.286473999999,
      "settlement_style": "occurrence",
      "direction": "occurrence",
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      "tags": [
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      "question": "Will A win the OR-04 House seat?",
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      "status": "closed",
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        "rules_raw": "This market will resolve according to the party of the candidate who wins the OR-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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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        "score": 68,
        "caps": [],
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      "question": "Will C win the OR-04 House seat?",
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      "close_at": "2026-11-03T00:00:00Z",
      "resolve_at": "2026-11-03T00:00:00Z",
      "status": "closed",
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        "rules_raw": "This market will resolve according to the party of the candidate who wins the OR-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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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      "rcg": {
        "grade": "B",
        "score": 68,
        "caps": [],
        "applied_factors": 6
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      "last_price": 0,
      "implied_probability": 0,
      "volume_24h_usd": 0,
      "volume_total_usd": 0,
      "settlement_style": "occurrence",
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      "tags": [
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        "house",
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    {
      "market_id": "CM-MKT-HZCPDWD8T1",
      "event_id": "CM-EVT-KRXYK9JQW8",
      "platform": "polymarket",
      "platform_market_id": "0x465da95d713157b02a2818ab0c5262c6deb290f1716e90f67ac1272c0b03d7a2",
      "question": "Will E win the OR-04 House seat?",
      "description": "This market will resolve according to the party of the candidate who wins the OR-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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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      "rcg": {
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        "score": 68,
        "caps": [],
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      "question": "Will the Republican Party win the OR-04 House seat?",
      "description": "This market will resolve according to the party of the candidate who wins the OR-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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": "open",
      "resolution": {
        "rules_raw": "This market will resolve according to the party of the candidate who wins the OR-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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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      "tags": [
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    {
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      "platform_market_id": "0x288702a8b1420e7087e60d9ead4fbee242b8e72c1394bc79fdefacb10c9a7ee4",
      "question": "Will another party win the OR-04 House seat?",
      "description": "This market will resolve according to the party of the candidate who wins the OR-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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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      "tags": [
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      "event_id": "CM-EVT-KRXYK9JQW8",
      "platform": "polymarket",
      "platform_market_id": "0xb96f01af4f6169d6523647da432f707abbce5214595384967f10a2f01a1d50b3",
      "question": "Will B win the OR-04 House seat?",
      "description": "This market will resolve according to the party of the candidate who wins the OR-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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",
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      "underlying_reference": "B: The Federal Election Commission's official election results determine which party's candidate wins the named House district seat in the November 2026 midterm elections.",
      "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-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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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