Overview
The Big Alta is where breathtaking California trails collide with pure trail community energy. On the legendary terrain of Marin County, runners take on single-loop adventures that test grit and reward with sweeping San Francisco Bay views. From ridge to ridge and summit to summit, you’ll feel the pulse of the trail community, the high of shared accomplishment, and the vibe of Freetrail and Daybreak Racing’s signature style.
Whether you take on the epic 50K or the exhilarating 28K, you’ll find yourself immersed in a course that celebrates both challenge and joy. With Loma Alta and Big Rock Ridge standing tall, this event is more than a race—it’s a festival of movement, connection, and wild beauty.
Saturday, March 22, 2025
Registration
Opens
TBD
Closes
TBD
Registration Fee

UTMB Index Qualifier
Official race details:
Logistics
The race is staged at Marinwood Community Center and Park, San Rafael, California, about 22 miles north of San Francisco. The nearest airports are San Francisco International (SFO) and Oakland International (OAK).
Driving Directions
Parking
All participant parking is along Miller Creek Road near Marinwood Community Center. Parking in the Marinwood Park lot is prohibited.
Lodging
Numerous hotels are available within a 5-10 minute drive in San Rafael and Novato.
Policies
Cancelations & Deferrals
Volunteers
Charity & Beneficiary
This event is a collaboration between Daybreak Racing and Freetrail, who support the trail running community and promote environmental stewardship.
Land Acknowledgement
We honor and recognize that we gather for this event on the traditional lands of the native Coast Miwok people, who have occupied and stewarded these lands for countless generations.
About
Daybreak Racing
Daybreak Racing is a Pacific Northwest–based trail running company dedicated to producing beautiful, original, and challenging trail races in spectacular natural settings. Their events emphasize safety, participant support, and an inclusive, festive atmosphere, blending professional-level race production with a welcoming, community-driven vibe. Every event features well-marked courses, thoughtfully staged venues with amenities, professional medical support (not volunteer‑only), high‑quality aid stations, and custom finisher awards and swag. They also integrate eco-responsibility into operations, including recycling and composting programs, and make donations to local beneficiaries for each race.
The team behind Daybreak Racing is led by Jeremy Long, a native of the Oregon Coast and race director whose background in public health and passion for trails shapes the company’s values. He’s supported by Aaron Long and Mack Robertson, who bring a blend of coaching, event coordination, and outdoor community engagement to ensure every race is thoughtfully executed and rooted in local stewardship.
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