PB&J Fuel Run 5K/10K/13.1 SAN FRANCISCO

PB&J Fuel Run 5K/10K/13.1 SAN FRANCISCO is held in San Francisco, California, on October 31, 2026. The half marathon (13.1 miles), the 10K, the 5K and a one-mile family fun run all begin at 7:30 a.m. The event welcomes runners and walkers at any level in a laid-back setting, with optional self-timing through a running app, a swag bag containing a race shirt and a finisher medal for each participant, and a virtual option for those who cannot be there.

Since nothing here forces you to race, the day is worth planning as a workout instead. Run the 10K as a tempo effort, or take the half at the pace you would like to hold in a spring marathon and see how honest that number really is. Walkers are on equal footing, and finishing at your own rhythm is the point.