Trail running in the North Bay of San Francisco is a unique and exhilarating experience. The area is known for its scenic beauty, with rolling hills, dense forests, and stunning views of the Pacific Ocean. Trail runners can explore a diverse range of terrains, from rocky technical trails to rolling fire roads, and enjoy the fresh air and peace of the great outdoors. The North Bay is home to many popular regional parks and wilderness areas, offering endless miles of trails to explore. The combination of challenging terrain, stunning views, and close proximity to urban areas make the North Bay a popular destination for trail runners of all levels. Whether you're looking for a scenic run with a friend or a challenging solo adventure, trail running in the North Bay of San Francisco is an experience that shouldn't be missed.

Ultramarathons near San Francisco

Marin Ultra Challenge

Skyline 50k Endurance Run

Chabot/Redtail Ridge Trail Run

North Marin Ridge Run

Woodside Ramble

Hacienda Hills Trail Run - Winter

Terrible, Horrible, No Good, Very Bad Day 50k

Mt Umunhum Ultras

Almaden Hills Trail Run - Summer

Almaden Hills Trail Run - Fall

Quicksilver Endurance Runs

Hacienda Hills Trail Run - Spring

Ultramarathons near San Francisco

Out and Back's guide to Ultramarathons near San Francisco, complete with races, training plans and tips.

Top Race Results for Ultramarathons near San Francisco