Greensprings 24

Greensprings 24 takes place on October 24, 2026 in Williamsburg, Virginia, and it is built around a single format: a 24-hour endurance race. Instead of a fixed distance, the clock sets the limit — you keep moving for a full day and the distance you cover is your result. It is listed as a trail event, and a 24-hour race by definition takes you through the night and out the other side.

Timed ultras reward patience far more than speed. Runners typically settle into a run-walk rhythm early, eat on a schedule from the first hour, and treat the small hours as the real test. If you have finished a 50K or a long day on trail and want to see how far you can actually go, this format is the most forgiving way to find out, since you can stop at any point and still have a result.