RunSignup API

The RunSignup REST API provides access to race and event management operations including race listings, participant registration and management, results import and posting, bib and chip management, division and corral management, team and group management, donations and fundraising, volunteer management, and user account management. The API uses a base URL of https://runsignup.com/Rest and supports both JSON and XML response formats. Authentication options include OAuth 2.0 (preferred), permanent API keys for partners and timers, and login-based credentials. Access levels vary by role: affiliates, partners, race directors, users, timers, and super partners each have different endpoint permissions.