The Big Alta

March 20, 2026

San Rafael

Welcome to The Big Alta, a collaborative trail running event produced by Daybreak Racing & Freetrail in trail-famous Marin County, California! With every step, these thoughtfully crafted courses provide an unforgettably scenic trail race experience. The Big Alta now offers three race distance options over a 3-day race weekend: a tough, inspiring single loop 50K on Friday, a NEW world-class point-to-point 100K on Saturday, along with a shorter yet equally exhilarating single loop 28K on Sunday.

A feast for the eyes, these courses will treat runners to seemingly endless vistas that stretch across the entire San Francisco Bay Area. All three courses summit many of the highest points in Marin County, and event namesake pays homage to course landmarks Loma Alta and Big Rock Ridge. The Big Alta will not only challenge its participants physically, but also reward their efforts with awe-inspiring views, heaps of trail community love and of course, all the electric race weekend vibes and hype!

Through the combined skillsets of Freetrail and Daybreak Racing, we will endeavor to deliver a premium quality race experience for our participants and volunteers, filled with spectacular views, challenging trails, good vibes, and an exciting finish line experience to celebrate human achievement. We hope you'll join us!