What started as a small crew training for a 50-mile race in NYC has grown into one of the most connected running communities in the world. Start training free or log in.
In 2022, a small group of friends started meeting up to train for a 50-mile race in New York City. Those casual runs turned into something bigger. Week after week more runners joined, friendships formed, and the idea for Endorphins was born.
What started as a few friends became a place where no one has to lace up alone. From Boston to Philadelphia, Chicago, LA, and Austin, 100,000+ runners now show up for each other across 2,000+ free group runs every year. Whether it's your first mile or your fastest, you'll always have people beside you, and a community in your corner long after the run is done.
Running is more than just miles. It's a way to bring people together, lift each other up, and create moments of pure joy. Our mission is simple.
Spread positivity through movement and exercise.
Help our community foster lifelong friendships.
Help runners reach their goals through personalized plans and expert coaching.
Whether you're chasing a personal record, training for your first race, or just running for the love of it, we're here to support you, every step of the way.
A portion of our proceeds goes directly back into supporting local running communities. When you train with Endorphins, you're helping fund the runs, the people, and the connection that make this community special.
Each one of our cities receives a quarterly budget to help facilitate connection within their local running community — so every group run, every meetup, and every new friendship has real support behind it.