{
  "schemaVersion": "vultax-public-research-data-v1",
  "articleUrl": "https://vultax.com/research/is-polymarket-just-sports-betting",
  "datasets": [
    {
      "title": "One Sunday, every event counted",
      "columns": [
        {
          "name": "Category",
          "unit": null
        },
        {
          "name": "Events",
          "unit": null
        },
        {
          "name": "Share of contracts",
          "unit": null
        }
      ],
      "rows": [
        [
          "Sports",
          "2,746",
          "70.6%"
        ],
        [
          "Esports",
          "259",
          "13.2%"
        ],
        [
          "Crypto",
          "2,039",
          "10.4%"
        ],
        [
          "Politics",
          "1,416",
          "3.2%"
        ],
        [
          "Weather and climate",
          "365",
          "1.2%"
        ],
        [
          "Economy and finance",
          "295",
          "0.4%"
        ],
        [
          "Culture",
          "183",
          "0.4%"
        ],
        [
          "Geopolitics",
          "136",
          "0.3%"
        ],
        [
          "Science and technology",
          "214",
          "0.2%"
        ],
        [
          "Other",
          "30",
          "0.03%"
        ]
      ],
      "measurementContext": "Polymarket's international venue, every event with volume in the 24 hours to 20:39 UTC on Sunday 27 September 2026, counted once under the venue's own category tags. Polymarket US is a separate exchange and is not counted.",
      "sources": [
        {
          "label": "Polymarket Gamma API — events by 24-hour volume",
          "url": "https://gamma-api.polymarket.com/events/keyset?order=volume24hr&ascending=false&limit=100",
          "note": "Read in full at 20:39 UTC on 27 September 2026, until the volume field reached zero; volume24hr counts contracts; read again at 22:59 UTC on 19 October 2026"
        },
        {
          "label": "Polymarket data API — trades",
          "url": "https://data-api.polymarket.com/trades",
          "note": "Dollars paid for the 256 sampled markets, and the check of the volume field against contracts traded"
        },
        {
          "label": "Boka Qin and Rui Yang — Polymarket-v1 Database (TimeSeventeen)",
          "url": "https://huggingface.co/datasets/TimeSeventeen/Polymarket-v1",
          "note": "Every fill from 1 January 2025 to 28 April 2026, published under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/); the monthly and weekday shares are Vultax calculations on it."
        },
        {
          "label": "Vultax: Is Polymarket legal in the US?",
          "url": "https://vultax.com/research/is-polymarket-legal-in-the-us-2026",
          "note": "Where sports event contracts may be offered, venue by venue"
        },
        {
          "label": "Vultax: Prediction market lawsuit tracker",
          "url": "https://vultax.com/research/prediction-market-lawsuit-tracker",
          "note": "The court cases over sports and event contracts, checked against the court record"
        },
        {
          "label": "Vultax: Polymarket sports and esports markets",
          "url": "https://vultax.com/research/polymarket-sports-and-esports-markets",
          "note": "Order-book depth and trading hours by sport"
        },
        {
          "label": "Selected arithmetic checked in Lean 4.35.0",
          "url": "https://vultax.com/datasets/research-proof-library-2026-10-25/articles/is-polymarket-just-sports-betting.md",
          "note": "Selected exact-rational calculations and displayed-value consistency checks, checked by Lean 4.35.0, Lean kernel replay and Nanoda. Not a proof of the underlying observations, statistical conclusions, legal claims or production code."
        },
        {
          "label": "Per-article scope records and Lean package",
          "url": "https://vultax.com/datasets/research-proof-library-public-2026-10-28/README.md",
          "note": "Historical scope records and selected Lean checks; the complete package is temporarily unavailable."
        }
      ],
      "measurement": {
        "kind": "observed",
        "temporalCoverage": "2026-09-26T20:39Z/2026-09-27T20:39Z",
        "population": "7,683 Polymarket events with 24-hour volume",
        "methodology": "The venue's public event feed read in full, ordered by 24-hour volume until the field reached zero; each event counted once under the venue's tags. The volume field counts contracts."
      },
      "id": "whole-venue-table",
      "kind": "published-table",
      "description": "On Sunday 27 September 2026 sports and esports took 84.5% of the dollars traded on Polymarket and 83.8% of the contracts. Over sixteen months the dollar share ran from 31% to a low of 22% and up to 46%, and NFL Sundays sat about twenty points above weekdays.",
      "articleUrl": "https://vultax.com/research/is-polymarket-just-sports-betting",
      "sectionUrl": "https://vultax.com/research/is-polymarket-just-sports-betting#whole-venue",
      "publishedAt": "2026-10-06",
      "modifiedAt": "2026-10-25",
      "version": "324c1b4e025acb2cfc6000587a52781462a2c7306cda595137acdaf604b9fca9",
      "isLive": false,
      "limitations": "Published research snapshots and calculations; these exports do not contain current quotes or live account data. Observation windows and populations are stated in the source captions and methodology. Missing metadata is unknown, not zero. Figures describe Polymarket's international venue: one full count on 27 September 2026 and every fill from January 2025 to April 2026. They measure what was traded, not how any contract is classified in law. Nothing here is legal or financial advice.",
      "downloads": {
        "json": "https://vultax.com/research/is-polymarket-just-sports-betting/data.json?dataset=whole-venue-table",
        "csv": "https://vultax.com/research/is-polymarket-just-sports-betting/data.csv?dataset=whole-venue-table"
      }
    }
  ]
}