Markets

Overview

Markets are the core data model in V2. Each market represents a type of bet (moneyline, spread, total, player props, etc.) with participants, lines, and prices from each sportsbook.

Default Market IDs

When you call event endpoints without specifying market_ids, the API defaults to 1,2,3:

Market ID	Name	Description
1	Moneyline	Winner of the game. Two-way for most sports, three-way (includes draw) for soccer.
2	Point Spread	Handicap/spread betting. The favorite must win by more than the spread.
3	Total (Over/Under)	Combined score of both teams. Bet over or under the posted number.

To get player props, team totals, or other market types, you must explicitly pass their IDs. For example, market_ids=29 for Player Points or market_ids=94 for Team Totals. See the full Market IDs reference.

For a visual breakdown of how markets, participants, lines, and prices nest together, see the Data Model. For the complete list of market IDs and sport availability, see Market IDs. For delta-based polling of market prices, see the Efficient Polling guide.

Endpoints

GET /api/v2/markets — List all market definitions

Returns every canonical market definition with its ID, name, period info, and whether the line value represents a participant name.This is a reference endpoint — it returns the market catalog, not live prices. Use it to build a mapping of market IDs to display names.

curl "https://therundown.io/api/v2/markets?key=YOUR_API_KEY"

Response fields

Field	Description
`id`	Numeric market identifier
`name`	Display name (e.g., “Money Line”, “Player Points”)
`description`	Longer description of the market
`short_description`	Abbreviated description
`line_value_is_participant`	When `true`, the line `value` field is a participant name, not a number
`proposition`	Whether this is a proposition/player prop market
`period_id`	Period this market applies to (see Period IDs)
`live_variant_id`	Market ID of the corresponding live/in-play variant, if any
`updated_at`	When the market definition was last updated

Example Response

[
  {
    "id": 1,
    "name": "Money Line",
    "description": "Pick the winner of the game",
    "short_description": "Winner",
    "line_value_is_participant": false,
    "proposition": false,
    "period_id": 0,
    "live_variant_id": 41,
    "updated_at": "2025-01-15T12:00:00Z"
  },
  {
    "id": 2,
    "name": "Point Spread",
    "description": "Handicap betting on the margin of victory",
    "short_description": "Spread",
    "line_value_is_participant": false,
    "proposition": false,
    "period_id": 0,
    "live_variant_id": 42,
    "updated_at": "2025-01-15T12:00:00Z"
  },
  {
    "id": 3,
    "name": "Total Over/Under",
    "description": "Combined score of both teams",
    "short_description": "Total",
    "line_value_is_participant": false,
    "proposition": false,
    "period_id": 0,
    "live_variant_id": 43,
    "updated_at": "2025-01-15T12:00:00Z"
  },
  {
    "id": 29,
    "name": "Player Points",
    "description": "Player points scored in the game",
    "short_description": "Points",
    "line_value_is_participant": true,
    "proposition": true,
    "period_id": 0,
    "live_variant_id": 90,
    "updated_at": "2025-01-15T12:00:00Z"
  },
  {
    "id": 94,
    "name": "Team Total",
    "description": "Total points scored by a single team",
    "short_description": "Team Total",
    "line_value_is_participant": true,
    "proposition": false,
    "period_id": 0,
    "live_variant_id": 96,
    "updated_at": "2025-01-15T12:00:00Z"
  }
]

GET /api/v2/markets/delta — Market price delta feed

Returns market line price changes (new, updated, removed) since the specified last_id. This is the most efficient way to keep your odds data up to date via polling.

Parameters

Parameter	Type	Required	Description
`last_id`	query	Yes	Integer cursor. Use `0` for initial fetch, then pass the highest ID from the previous response.
`sport_id`	query	No	Filter by sport ID
`affiliate_ids`	query	No	Comma-separated sportsbook IDs
`market_ids`	query	No	Comma-separated market IDs
`event_id`	query	No	Filter by event ID
`limit`	query	No	Max results (default 1000, max 5000)

curl "https://therundown.io/api/v2/markets/delta?key=YOUR_API_KEY&last_id=0&sport_id=4&market_ids=1,2,3"

Example Response

{
  "meta": {
    "delta_last_id": "584012",
    "count": 3,
    "has_more": false
  },
  "deltas": [
    {
      "id": 584010,
      "event_id": "401584701-d1f2-43e7-b5a6-9c8d7e6f5a4b",
      "sport_id": 4,
      "affiliate_id": 19,
      "market_id": 2,
      "market_name": "Point Spread",
      "participant_id": 51,
      "participant_type": "TYPE_TEAM",
      "participant_name": "Cleveland Cavaliers",
      "line": "-4.5",
      "price": "-110",
      "previous_price": "-105",
      "change_type": "price_change",
      "closed_at": "",
      "updated_at": "2026-02-26T18:45:30Z"
    },
    {
      "id": 584011,
      "event_id": "401584701-d1f2-43e7-b5a6-9c8d7e6f5a4b",
      "sport_id": 4,
      "affiliate_id": 19,
      "market_id": 1,
      "market_name": "Moneyline",
      "participant_id": 56,
      "participant_type": "TYPE_TEAM",
      "participant_name": "New York Knicks",
      "line": "",
      "price": "125",
      "previous_price": "120",
      "change_type": "price_change",
      "closed_at": "",
      "updated_at": "2026-02-26T18:45:32Z"
    },
    {
      "id": 584012,
      "event_id": "401584701-d1f2-43e7-b5a6-9c8d7e6f5a4b",
      "sport_id": 4,
      "affiliate_id": 19,
      "market_id": 3,
      "market_name": "Total Over/Under",
      "participant_id": 0,
      "participant_type": "TYPE_RESULT",
      "participant_name": "Over",
      "line": "224.5",
      "price": "-108",
      "previous_price": "-110",
      "change_type": "price_change",
      "closed_at": "",
      "updated_at": "2026-02-26T18:45:35Z"
    }
  ]
}

GET /api/v2/markets/history — Price history by market line price IDs

Returns the price history for specific market line prices. You need the market_line_price_id values from a prior event or delta response.

Parameters

Parameter	Type	Required	Description
`market_line_price_ids`	query	Yes	Comma-separated IDs (max 50)
`from`	query	No	Start time (RFC3339 format)
`to`	query	No	End time (RFC3339 format)
`limit`	query	No	Max results (default 1000, max 5000)

curl "https://therundown.io/api/v2/markets/history?key=YOUR_API_KEY&market_line_price_ids=12345,67890&limit=500"

Example Response

{
  "meta": {
    "count": 5
  },
  "history": [
    {
      "id": 90001,
      "market_line_price_id": 12345,
      "event_id": "401584701-d1f2-43e7-b5a6-9c8d7e6f5a4b",
      "sport_id": 4,
      "affiliate_id": 19,
      "market_participant_id": 51,
      "market_id": 2,
      "line": "-3.5",
      "price": "-110",
      "previous_price": "",
      "change_type": "new",
      "closed_at": "",
      "updated_at": "2026-02-24T14:00:00Z"
    },
    {
      "id": 90002,
      "market_line_price_id": 12345,
      "event_id": "401584701-d1f2-43e7-b5a6-9c8d7e6f5a4b",
      "sport_id": 4,
      "affiliate_id": 19,
      "market_participant_id": 51,
      "market_id": 2,
      "line": "-3.5",
      "price": "-115",
      "previous_price": "-110",
      "change_type": "price_change",
      "closed_at": "",
      "updated_at": "2026-02-25T18:30:00Z"
    },
    {
      "id": 90003,
      "market_line_price_id": 12345,
      "event_id": "401584701-d1f2-43e7-b5a6-9c8d7e6f5a4b",
      "sport_id": 4,
      "affiliate_id": 19,
      "market_participant_id": 51,
      "market_id": 2,
      "line": "-4.5",
      "price": "-110",
      "previous_price": "-115",
      "change_type": "line_change",
      "closed_at": "",
      "updated_at": "2026-02-26T01:15:00Z"
    },
    {
      "id": 90004,
      "market_line_price_id": 67890,
      "event_id": "401584701-d1f2-43e7-b5a6-9c8d7e6f5a4b",
      "sport_id": 4,
      "affiliate_id": 19,
      "market_participant_id": 56,
      "market_id": 1,
      "line": "",
      "price": "110",
      "previous_price": "",
      "change_type": "new",
      "closed_at": "",
      "updated_at": "2026-02-24T14:00:00Z"
    },
    {
      "id": 90005,
      "market_line_price_id": 67890,
      "event_id": "401584701-d1f2-43e7-b5a6-9c8d7e6f5a4b",
      "sport_id": 4,
      "affiliate_id": 19,
      "market_participant_id": 56,
      "market_id": 1,
      "line": "",
      "price": "122",
      "previous_price": "110",
      "change_type": "price_change",
      "closed_at": "",
      "updated_at": "2026-02-25T22:00:00Z"
    }
  ]
}

GET /api/v2/markets/participants — Get market participants

Returns participants (teams, players, or result types like Over/Under) for specified markets and events. Useful for resolving participant IDs to names.

Parameters

Parameter	Type	Required	Description
`market_ids`	query	No	Comma-separated market IDs
`event_id`	query	No	Filter by event ID

curl "https://therundown.io/api/v2/markets/participants?key=YOUR_API_KEY&event_id=EVENT_ID&market_ids=29"

Example Response

{
  "participants": [
    {
      "id": 70001,
      "market_event_id": 28401,
      "participant_id": 2005,
      "participant_type": "TYPE_PLAYER",
      "participant_name": "Donovan Mitchell",
      "updated_at": "2026-02-26T12:00:00Z"
    },
    {
      "id": 70002,
      "market_event_id": 28401,
      "participant_id": 2010,
      "participant_type": "TYPE_PLAYER",
      "participant_name": "Jalen Brunson",
      "updated_at": "2026-02-26T12:00:00Z"
    },
    {
      "id": 70003,
      "market_event_id": 28401,
      "participant_id": 51,
      "participant_type": "TYPE_TEAM",
      "participant_name": "Cleveland Cavaliers",
      "updated_at": "2026-02-26T12:00:00Z"
    },
    {
      "id": 70004,
      "market_event_id": 28401,
      "participant_id": 0,
      "participant_type": "TYPE_RESULT",
      "participant_name": "Over",
      "updated_at": "2026-02-26T12:00:00Z"
    }
  ]
}

GET /api/v2/events/{eventID}/markets — Available markets for an event

Returns the list of market definitions (not prices) available for a specific event. Use this to discover which markets are offered before requesting prices.

Parameters

Parameter	Type	Required	Description
`eventID`	path	Yes	Canonical V2 event ID from the `event_id` field
`participant_ids`	query	No	Filter by participant IDs
`participant_type`	query	No	Filter by participant type

curl "https://therundown.io/api/v2/events/EVENT_ID/markets?key=YOUR_API_KEY"

Example Response

Returns the same market definition schema as GET /api/v2/markets, filtered to the markets available for this event.

[
  {
    "id": 1,
    "name": "Money Line",
    "description": "Pick the winner of the game",
    "short_description": "Winner",
    "line_value_is_participant": false,
    "proposition": false,
    "period_id": 0,
    "live_variant_id": 41,
    "updated_at": "2025-01-15T12:00:00Z"
  },
  {
    "id": 2,
    "name": "Point Spread",
    "description": "Handicap betting on the margin of victory",
    "short_description": "Spread",
    "line_value_is_participant": false,
    "proposition": false,
    "period_id": 0,
    "live_variant_id": 42,
    "updated_at": "2025-01-15T12:00:00Z"
  },
  {
    "id": 3,
    "name": "Total Over/Under",
    "description": "Combined score of both teams",
    "short_description": "Total",
    "line_value_is_participant": false,
    "proposition": false,
    "period_id": 0,
    "live_variant_id": 43,
    "updated_at": "2025-01-15T12:00:00Z"
  },
  {
    "id": 29,
    "name": "Player Points",
    "description": "Player points scored in the game",
    "short_description": "Points",
    "line_value_is_participant": true,
    "proposition": true,
    "period_id": 0,
    "live_variant_id": 90,
    "updated_at": "2025-01-15T12:00:00Z"
  }
]

GET /api/v2/events/{eventID}/markets/history — Market history for an event

Returns time-series price history for all markets on an event. Supports filtering by market, affiliate, and time range.

Parameters

Parameter	Type	Required	Description
`eventID`	path	Yes	Canonical V2 event ID from the `event_id` field
`market_ids`	query	No	Comma-separated market IDs
`affiliate_ids`	query	No	Comma-separated sportsbook IDs
`from`	query	No	Start time (RFC3339)
`to`	query	No	End time (RFC3339)
`limit`	query	No	Max results (default 1000, max 5000)

curl "https://therundown.io/api/v2/events/EVENT_ID/markets/history?key=YOUR_API_KEY&market_ids=1,2,3&affiliate_ids=19"

Example Response

{
  "meta": {
    "event_id": "401584701-d1f2-43e7-b5a6-9c8d7e6f5a4b",
    "count": 3
  },
  "history": [
    {
      "id": 80001,
      "market_line_price_id": 12345,
      "event_id": "401584701-d1f2-43e7-b5a6-9c8d7e6f5a4b",
      "sport_id": 4,
      "affiliate_id": 19,
      "market_participant_id": 51,
      "market_id": 1,
      "line": "",
      "price": "-130",
      "previous_price": "",
      "change_type": "new",
      "closed_at": "",
      "updated_at": "2026-02-24T14:00:00Z"
    },
    {
      "id": 80002,
      "market_line_price_id": 12345,
      "event_id": "401584701-d1f2-43e7-b5a6-9c8d7e6f5a4b",
      "sport_id": 4,
      "affiliate_id": 19,
      "market_participant_id": 51,
      "market_id": 1,
      "line": "",
      "price": "-140",
      "previous_price": "-130",
      "change_type": "price_change",
      "closed_at": "",
      "updated_at": "2026-02-25T09:30:00Z"
    },
    {
      "id": 80003,
      "market_line_price_id": 12345,
      "event_id": "401584701-d1f2-43e7-b5a6-9c8d7e6f5a4b",
      "sport_id": 4,
      "affiliate_id": 19,
      "market_participant_id": 51,
      "market_id": 1,
      "line": "",
      "price": "-145",
      "previous_price": "-140",
      "change_type": "price_change",
      "closed_at": "",
      "updated_at": "2026-02-26T16:20:00Z"
    }
  ]
}

GET /api/v2/events/{eventID}/markets/{marketID}/history — Line chart data for a specific market

Returns time-series price data suitable for charting line movement on a single market. More granular than the general history endpoint.

Parameters

Parameter	Type	Required	Description
`eventID`	path	Yes	Canonical V2 event ID from the `event_id` field
`marketID`	path	Yes	Market ID (e.g., `1` for Moneyline)
`participant_id`	query	No	Filter by participant ID
`affiliate_ids`	query	No	Comma-separated sportsbook IDs
`line`	query	No	Filter by line value
`from`	query	No	Start time (RFC3339)
`to`	query	No	End time (RFC3339)

curl "https://therundown.io/api/v2/events/EVENT_ID/markets/1/history?key=YOUR_API_KEY&affiliate_ids=19"

Example Response

The chart-optimized response groups data points into series keyed by affiliate ID. Each point uses shorthand fields: t (timestamp), p (price), and c (closed_at, empty string if still active).

{
  "meta": {
    "event_id": "401584701-d1f2-43e7-b5a6-9c8d7e6f5a4b",
    "market_id": 2,
    "market_name": "Point Spread"
  },
  "series": {
    "19": {
      "affiliate_id": 19,
      "affiliate_name": "DraftKings",
      "data": [
        { "t": "2026-02-24T14:00:00Z", "p": "-3.5 -110", "c": "" },
        { "t": "2026-02-25T09:15:00Z", "p": "-4.5 -110", "c": "" },
        { "t": "2026-02-26T16:30:00Z", "p": "-4.5 -108", "c": "" }
      ]
    }
  }
}

Available Markets by Sport and Date

You can also discover which markets are available for a sport on a given date:

curl "https://therundown.io/api/v2/sports/markets/2026-02-26?key=YOUR_API_KEY"

Market Data Model

Each market in an event response follows this structure:

{
  "id": 28401,
  "market_id": 1,
  "period_id": 0,
  "name": "Moneyline",
  "market_description": "Pick the winner of the game",
  "participants": [
    {
      "id": 51,
      "type": "TYPE_TEAM",
      "name": "Cleveland Cavaliers",
      "lines": [
        {
          "id": "a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6",
          "value": "",
          "prices": {
            "19": { "id": "194920001", "price": -145, "is_main_line": true, "updated_at": "2026-02-26T18:30:00Z" }
          }
        }
      ]
    }
  ]
}

The prices object is keyed by affiliate_id (sportsbook). A price value of 0.0001 indicates the line is off the board.

V2 Sports

V2 Events

V2 Markets

V2 Teams

V2 Players

V2 Stats

V2 Reference

V2 WebSocket

V1 Events (Legacy)

V1 Lines (Legacy)

V1 Sports (Legacy)

V1 Delta (Legacy)

V1 Reference (Legacy)

V1 WebSocket (Legacy)

Overview

Default Market IDs

Endpoints

Response fields

Example Response

Parameters

Example Response

Parameters

Example Response

Parameters

Example Response

Parameters

Example Response

Parameters

Example Response

Parameters

Example Response

Available Markets by Sport and Date

Market Data Model

V2 Sports

V2 Events

V2 Markets

V2 Teams

V2 Players

V2 Stats

V2 Reference

V2 WebSocket

V1 Events (Legacy)

V1 Lines (Legacy)

V1 Sports (Legacy)

V1 Delta (Legacy)

V1 Reference (Legacy)

V1 WebSocket (Legacy)

​Overview

​Default Market IDs

​Endpoints

​Response fields

​Example Response

​Parameters

​Example Response

​Parameters

​Example Response

​Parameters

​Example Response

​Parameters

​Example Response

​Parameters

​Example Response

​Parameters

​Example Response

​Available Markets by Sport and Date

​Market Data Model

Overview

Default Market IDs

Endpoints

Response fields

Example Response

Parameters

Example Response

Parameters

Example Response

Parameters

Example Response

Parameters

Example Response

Parameters

Example Response

Parameters

Example Response

Available Markets by Sport and Date

Market Data Model