H.U.R.T. 100 Mile Endurance Run

H.U.R.T. 100 Mile Endurance Run is a 100-mile trail race held in Waipahu, Hawaii, on January 16, 2027. The single format packs in about 24,500 feet of climbing over the 100-mile distance, which puts it among the most vertical 100-milers in the United States. The start time was not published at the time of listing.

This is not a first 100-mile race. With roughly 245 feet of climbing per mile on average, you will spend a large part of the day hiking, and descending skills matter as much as running fitness. It suits experienced ultrarunners who already have at least one 100-mile finish and want a mountain-style challenge in a tropical setting. A 20- to 24-week build should include weekly vertical of 8,000 feet or more, back-to-back long runs on technical trails, and specific downhill training to protect your quads. Heat and humidity preparation is worth adding in the final weeks, and a well-tested nutrition plan is essential for what will likely be a 30-hour-plus effort for many finishers.