{
  "_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."
  },
  "event_id": "CM-EVT-3HNT2VSLV9",
  "slug": "massachusetts-governor-winner-2026",
  "question": "Will a winner of the Massachusetts Governor election be determined by the election date?",
  "category": "politics",
  "event_type": "BINARY",
  "ladder_distribution": null,
  "tags": [
    "politics",
    "elections",
    "us-governor",
    "massachusetts",
    "2026-election",
    "state-race"
  ],
  "catalyst_types": [],
  "catalyst_dates": [],
  "editorial_notes": "These markets track the outcome of the 2026 Massachusetts gubernatorial election. Polymarket structures the event as a set of binary yes/no contracts covering party outcomes and individual named candidates. All markets resolve via Polymarket's UMA Optimistic Oracle using party affiliation reported by the Associated Press, Fox News, or NBC at nomination. Candidate-specific options labeled A through J serve as placeholders until the field is formalized.",
  "venues_covered": [
    "polymarket"
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  "primary_market_id": "CM-MKT-DSBRQ652V0",
  "current_primary_mark": {
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    "implied_probability": 0.951
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  "created_at": "2026-07-06T00:30:45.836226+00:00",
  "updated_at": "2026-07-06T00:30:45.836226+00:00",
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      "event_id": "CM-EVT-3HNT2VSLV9",
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      "platform_market_id": "0xcace1894a70b121e0172815c9a3b8d565ad015bdf75996963ea00969d91e5722",
      "question": "Will the Republicans win the Massachusetts governor race in 2026?",
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      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "Republican: The named candidate's party affiliation at nomination, as reported by the Associated Press, Fox News, or NBC following the 2026 Massachusetts gubernatorial election, determines the outcome.",
      "close_at": null,
      "resolve_at": null,
      "status": "open",
      "resolution": {
        "rules_raw": "This market will resolve according to the winner of the 2026 Massachusetts gubernatorial election.\n\nA candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.\n\nCandidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.\n\nThe resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.",
        "arbitration_model": "uma_oracle",
        "proposer": "managed_whitelist",
        "source": null,
        "source_status": "platform_named",
        "source_citation": null,
        "sources": [
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            "name": "Associated Press",
            "url": null,
            "provenance": "clearmarket_editorial"
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          {
            "name": "Fox News",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "NBC",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "official certification",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "Associated Press, Fox News, and NBC",
        "source_mechanism": "quorum",
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        "source_quality": null,
        "source_commitment": "named",
        "source_commitment_subtype": "named",
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      "rcg": {
        "grade": "A",
        "score": 82,
        "caps": [],
        "applied_factors": 7
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      "last_price": 0.05,
      "implied_probability": 0.05,
      "volume_24h_usd": 0,
      "volume_total_usd": 17968.88503500001,
      "settlement_style": "occurrence",
      "direction": "occurrence",
      "threshold": null,
      "question_id": null,
      "also_on": null,
      "tags": [
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        "election",
        "governor",
        "massachusetts",
        "massachusetts governor election",
        "republican"
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      "eligibility_screens": null
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    {
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      "question": "Will Option D win the Massachusetts governor race in 2026?",
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      "close_at": null,
      "resolve_at": null,
      "status": "closed",
      "resolution": {
        "rules_raw": "This market will resolve according to the winner of the 2026 Massachusetts gubernatorial election.\n\nA candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.\n\nCandidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.\n\nThe resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.",
        "arbitration_model": "uma_oracle",
        "proposer": "managed_whitelist",
        "source": null,
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            "url": null,
            "provenance": "clearmarket_editorial"
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            "provenance": "clearmarket_editorial"
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      "rcg": {
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        "score": 82,
        "caps": [],
        "applied_factors": 7
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      "last_price": 0,
      "implied_probability": 0,
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      "volume_total_usd": 0,
      "settlement_style": "occurrence",
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      "question": "Will Option H win the Massachusetts governor race in 2026?",
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      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "Option H: The named candidate's party affiliation at nomination, as reported by the Associated Press, Fox News, or NBC following the 2026 Massachusetts gubernatorial election, determines the outcome.",
      "close_at": null,
      "resolve_at": null,
      "status": "closed",
      "resolution": {
        "rules_raw": "This market will resolve according to the winner of the 2026 Massachusetts gubernatorial election.\n\nA candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.\n\nCandidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.\n\nThe resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.",
        "arbitration_model": "uma_oracle",
        "proposer": "managed_whitelist",
        "source": null,
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            "url": null,
            "provenance": "clearmarket_editorial"
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          {
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            "url": null,
            "provenance": "clearmarket_editorial"
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          {
            "name": "NBC",
            "url": null,
            "provenance": "clearmarket_editorial"
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          {
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            "provenance": "clearmarket_editorial"
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        "source_of_record": "Associated Press, Fox News, and NBC",
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        "source_quality": null,
        "source_commitment": "named",
        "source_commitment_subtype": "named",
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      "rcg": {
        "grade": "A",
        "score": 82,
        "caps": [],
        "applied_factors": 7
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      "last_price": 0,
      "implied_probability": 0,
      "volume_24h_usd": 0,
      "volume_total_usd": 0,
      "settlement_style": "occurrence",
      "direction": "occurrence",
      "threshold": null,
      "question_id": null,
      "also_on": null,
      "tags": [
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        "election",
        "governor",
        "massachusetts",
        "massachusetts governor election",
        "option-h"
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      "eligibility_screens": null
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    {
      "market_id": "CM-MKT-JXPN46KNC3",
      "event_id": "CM-EVT-3HNT2VSLV9",
      "platform": "polymarket",
      "platform_market_id": "0x1c8c0da5eebf66da02490ffeac5cb3d53d4f706c8482dac349f8bb267eb2b1b4",
      "question": "Will Option A win the Massachusetts governor race in 2026?",
      "description": "This market will resolve according to the winner of the 2026 Massachusetts gubernatorial election.\n\nA candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.\n\nCandidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.\n\nThe resolution source for this market is the Associated Press, Fox News, and NBC. Thi",
      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "Option A: The named candidate's party affiliation at nomination, as reported by the Associated Press, Fox News, or NBC following the 2026 Massachusetts gubernatorial election, determines the outcome.",
      "close_at": null,
      "resolve_at": null,
      "status": "closed",
      "resolution": {
        "rules_raw": "This market will resolve according to the winner of the 2026 Massachusetts gubernatorial election.\n\nA candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.\n\nCandidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.\n\nThe resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.",
        "arbitration_model": "uma_oracle",
        "proposer": "managed_whitelist",
        "source": null,
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            "url": null,
            "provenance": "clearmarket_editorial"
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            "provenance": "clearmarket_editorial"
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            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "official certification",
            "url": null,
            "provenance": "clearmarket_editorial"
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        "source_commitment": "named",
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      "rcg": {
        "grade": "A",
        "score": 82,
        "caps": [],
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      "settlement_style": "occurrence",
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      "tags": [
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      "eligibility_screens": null
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    {
      "market_id": "CM-MKT-8MSLW4K5B2",
      "event_id": "CM-EVT-3HNT2VSLV9",
      "platform": "polymarket",
      "platform_market_id": "0x0d6a6b835ac3fb9b7c4c2aa71da64d24a78cf160b901e1a79aab6e348533a6d4",
      "question": "Will Option E win the Massachusetts governor race in 2026?",
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      "underlying_reference": "Option E: The named candidate's party affiliation at nomination, as reported by the Associated Press, Fox News, or NBC following the 2026 Massachusetts gubernatorial election, determines the outcome.",
      "close_at": null,
      "resolve_at": null,
      "status": "closed",
      "resolution": {
        "rules_raw": "This market will resolve according to the winner of the 2026 Massachusetts gubernatorial election.\n\nA candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.\n\nCandidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.\n\nThe resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.",
        "arbitration_model": "uma_oracle",
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            "provenance": "clearmarket_editorial"
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            "url": null,
            "provenance": "clearmarket_editorial"
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            "provenance": "clearmarket_editorial"
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      "tags": [
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        "option-e"
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      "eligibility_screens": null
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    {
      "market_id": "CM-MKT-KP6GLW2QB7",
      "event_id": "CM-EVT-3HNT2VSLV9",
      "platform": "polymarket",
      "platform_market_id": "0xd1444d1df2818d123f5cd00ceb70a65485118f6b467ac5ba4d16c1c219a324ee",
      "question": "Will Option I win the Massachusetts governor race in 2026?",
      "description": "This market will resolve according to the winner of the 2026 Massachusetts gubernatorial election.\n\nA candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.\n\nCandidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.\n\nThe resolution source for this market is the Associated Press, Fox News, and NBC. Thi",
      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "Option I: The named candidate's party affiliation at nomination, as reported by the Associated Press, Fox News, or NBC following the 2026 Massachusetts gubernatorial election, determines the outcome.",
      "close_at": null,
      "resolve_at": null,
      "status": "closed",
      "resolution": {
        "rules_raw": "This market will resolve according to the winner of the 2026 Massachusetts gubernatorial election.\n\nA candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.\n\nCandidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.\n\nThe resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.",
        "arbitration_model": "uma_oracle",
        "proposer": "managed_whitelist",
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            "provenance": "clearmarket_editorial"
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            "url": null,
            "provenance": "clearmarket_editorial"
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            "url": null,
            "provenance": "clearmarket_editorial"
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          {
            "name": "official certification",
            "url": null,
            "provenance": "clearmarket_editorial"
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        "source_commitment_subtype": "named",
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      "rcg": {
        "grade": "A",
        "score": 82,
        "caps": [],
        "applied_factors": 7
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      "settlement_style": "occurrence",
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      "tags": [
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        "option-i"
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      "eligibility_screens": null
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    {
      "market_id": "CM-MKT-PLY9955051",
      "event_id": "CM-EVT-3HNT2VSLV9",
      "platform": "polymarket",
      "platform_market_id": "0xc6757fce2d4479aeef9330dd23fd7853c1c334f4d4fdaa588fc19c65e92eb6c8",
      "question": "Will Option B win the Massachusetts governor race in 2026?",
      "description": "This market will resolve according to the winner of the 2026 Massachusetts gubernatorial election.\n\nA candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.\n\nCandidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.\n\nThe resolution source for this market is the Associated Press, Fox News, and NBC. Thi",
      "contract_type": "binary",
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      "underlying_reference": "Option B: The named candidate's party affiliation at nomination, as reported by the Associated Press, Fox News, or NBC following the 2026 Massachusetts gubernatorial election, determines the outcome.",
      "close_at": null,
      "resolve_at": null,
      "status": "closed",
      "resolution": {
        "rules_raw": "This market will resolve according to the winner of the 2026 Massachusetts gubernatorial election.\n\nA candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.\n\nCandidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.\n\nThe resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.",
        "arbitration_model": "uma_oracle",
        "proposer": "managed_whitelist",
        "source": null,
        "source_status": "platform_named",
        "source_citation": null,
        "sources": [
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            "name": "Associated Press",
            "url": null,
            "provenance": "clearmarket_editorial"
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            "name": "Fox News",
            "url": null,
            "provenance": "clearmarket_editorial"
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          {
            "name": "NBC",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
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            "url": null,
            "provenance": "clearmarket_editorial"
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}