Go Big

Go Big is an ultrarunning event based in Hilo, Hawaii, starting on December 31, 2026. Four formats are offered, and they climb steeply: a 50K (31 miles), a 50 Miler, a 100 Miler, and a 260 Miler, the last of which runs to roughly 418 kilometers. Start times are not published in advance.

The 50K is the accessible end of this menu and a natural first ultra for a runner who has already completed a marathon; the 100 and 260 milers are multi-day undertakings that require a crew, a sleep plan and years of accumulated mileage rather than a single training block. Whichever you choose, spend the build practicing on long descents as well as climbs, since quadriceps damage ends more ultras than fitness does. Rehearse your nutrition on every long run until nothing about race day is new.