RunnersUnder

RunnersUnder is a community-driven platform and brand focused on endurance running, encompassing road and trail disciplines. It functions as an online hub where runners share training logs, race results, routes, gear reviews, and coaching discussions. The project emphasizes inclusivity, accessible instruction for beginners, and the exchange of evidence-based practices for performance and injury prevention.

Originating in the late 2010s as a collaboration among amateur runners and developers, RunnersUnder began as a forum and informal meetup network before expanding into a mobile app and public data repository. It positions itself as a global community with regional groups and offline events aimed at fostering peer support and opportunity for new runners.

Key features include route mapping and sharing, performance analytics derived from user data, personalized training programs, and organized challenges. The platform supports local meetups, group runs, and forums for gear reviews, nutrition discussions, and race planning. It also provides data export options for researchers and coaching professionals under defined privacy terms.

Governance is community-driven, with volunteer moderators and a code of conduct intended to ensure respectful discourse and safety. The platform has received attention for its emphasis on community building and data-driven training while facing typical concerns about privacy, data ownership, and moderation at scale. Overall, RunnersUnder is regarded as a supplementary resource for endurance runners seeking social support and practical training insights.