Be More Human
Empower athletes to overcome adversity, embrace discomfort and empower their communities.
What Makes Us Different.
Mammoth isn’t just about miles, it’s about meaning. Our events are built to push you past physical limits, into a space where resilience, reflection, and human connection thrive.
Challenge
We embrace audacious goals and the resilience required to achieve them.
Contentment
We build forever athletes who celebrate the whole journey — evolving as athletes, teammates, and supporters of one another’s success.
Connection
We endure together, knowing our community carries us to the finish.
Consistency
Consistently we choose health through nutrition, meditation and reflection, and pushing our bodies to new limits.
Upcoming Events
At Mammoth Endurance, our events are designed to push limits and transform lives. From multi-day ultra-triathlons to team relays, each race offers a fully supported course, breathtaking locations, and a community that endures together. Whether you’re chasing your first ultra finish or adding another medal to your collection, our events are built to challenge, connect, and inspire you every step of the way.
Meet the Rileys
After having our amazing twin girls in 2019 - followed almost immediately by the pandemic - Carmela and I had a lot of time to think and reflect about how we wanted to craft this new chapter in our lives. Carmela took the entrepreneurial leap in 2021, by leaving her teaching position after 12 years and moving into health coaching. Her contagious spirit caught fire as she has worked over the past five years to heal people from the inside out and revive their energy and passion for life. She currently runs group functional medicine detoxes, individualized health coaching with the support of functional labs, and corporate health and wellness presentations.
Ready to test your limits?
Whether you’re chasing your first ultra or your next finish line, Mammoth Endurance is here to carry you through.