Endurance events built by athletes who believe the finish line is just the beginning. From desert canyons to Texas Hill Country — we build races that test, challenge, and bring people together.
Our Story
Capstone Endurance was founded on a simple idea: endurance events should be more than just a race. They should be experiences that push boundaries, build community, and leave a lasting mark.
We started with the Bootleg Boogie — a 100 mile, 50 mile, and half marathon through the rugged desert terrain outside Boulder City, Nevada. What began as a single event has grown into a series spanning multiple states and formats, from traditional ultras to backyard ultras to the high-intensity Selection experience.
Every Capstone event is designed with the same standard: real courses, strong aid station culture, fair pricing, and an atmosphere that welcomes first-timers and veterans alike. We sweat the details so you can focus on the miles.
Whether you're chasing a buckle, testing your limits at theSelection, or lining up for your first ultra — we'll see you out there.
Every course is designed to challenge and reward — with terrain that earns your respect and views that make the suffering worth it.
Stocked stations, hot food after dark, and volunteers who care. We build aid stations you look forward to.
Small enough to know your name, big enough to matter. Capstone events are built around the people who show up.
No price gouging. No hidden fees. We keep costs honest so more people can toe the line.
We believe in putting money back into the sport. Capstone events feature prize purses for top finishers — because the effort deserves to be rewarded.
2026–2027 Season
Get in Touch
Have a question about an event, want to volunteer, or interested in partnering with Capstone? We'd love to hear from you.
For questions about events, registration, volunteering, or anything else — reach out directly.
Interested in sponsoring a Capstone event or partnering with us? Let's talk.
For press inquiries, photo requests, or media credentials, email us and we'll get back to you promptly.
For all inquiries, the best way to reach us is by email. We typically respond within 24 hours.
ROB@CAPSTONE.RUN