Mile Madness Endurance Run

Mile Madness Endurance Run is held in Rocklin, California, on September 18–19, 2026, by Everyday Endurance Races. The event lines up a 100-mile trail race plus a set of timed formats: a 72-hour and a 48-hour that begin on September 18, and a 24-hour, a 12-hour and a 6-hour that begin on September 19. With that many options, you can pick anything from a long half-day effort to a multi-day event.

Multi-day timed races reward patience far more than speed. If you are eyeing the 72-hour or the 48-hour, your preparation should include practicing sleep breaks and eating real food, not just gels. The 100-mile is for runners who already have a 50-mile or 100K finish, while the 6-hour and 12-hour are approachable first ultras where you can walk as much as you like. For most of these formats, a 16- to 20-week block with back-to-back long runs and regular time on your feet on the weekend is a sensible base. Mid-September in the Sacramento area can still be warm, so hydrate deliberately from the start.