PB&J Fuel Run 5K/10K/13.1 PHOENIX

PB&J Fuel Run 5K/10K/13.1 PHOENIX is scheduled in Phoenix, Arizona, on October 31, 2026. Four road formats start together at 7:30 a.m.: the half marathon (13.1 miles), the 10K, the 5K and a one-mile family fun run.

Fueling is the part most first-timers underestimate over 13.1. Anything beyond about an hour of running benefits from carbohydrate taken on the move, and the time to find out what your stomach tolerates is during your long runs, not at mile nine of a race. Drink to thirst rather than on a schedule, and carry what you plan to use if you would rather not rely on what is out on course. A structured run-walk approach also works well at this distance and often produces a faster finish than running until you fade.