> ## Documentation Index
> Fetch the complete documentation index at: https://docs.struct.to/llms.txt
> Use this file to discover all available pages before exploring further.

# Get series market outcomes

> Returns the winning outcome name for each resolved market across all events in a series, keyed by market slug. Useful for checking historical results across recurring series (e.g., btc-updown-5m).



## OpenAPI

````yaml https://api.struct.to/openapi.json get /polymarket/series/outcomes
openapi: 3.1.0
info:
  title: Polymarket API
  description: >-
    RESTful API for querying Polymarket prediction markets data including
    events, markets, traders, holders, and real-time metrics
  license:
    name: ''
  version: 1.0.0
servers:
  - url: https://api.struct.to/v1
security: []
paths:
  /polymarket/series/outcomes:
    get:
      tags:
        - Series
      summary: Get series market outcomes
      description: >-
        Returns the winning outcome name for each resolved market across all
        events in a series, keyed by market slug. Useful for checking historical
        results across recurring series (e.g., btc-updown-5m).
      operationId: get_series_outcomes
      parameters:
        - name: series_slug
          in: query
          description: Series slug (required)
          required: true
          schema:
            type: string
        - name: limit
          in: query
          description: 'Number of resolved markets per page (default: 10, max: 250)'
          required: false
          schema:
            type: integer
            format: int32
        - name: pagination_key
          in: query
          description: Cursor-based pagination key for fetching next page
          required: false
          schema:
            type: string
      responses:
        '200':
          description: Map of market_slug → winning outcome name with pagination metadata
          content:
            application/json:
              schema:
                type: object
                additionalProperties:
                  type: string
                propertyNames:
                  type: string
        '400':
          description: Missing series_slug parameter

````