IAU (International Association of Ultrarunners)

The International Association of Ultrarunners (IAU) is a global organization dedicated to overseeing and promoting ultrarunning, which involves long-distance races beyond the marathon length of 42.195 kilometers (26.2 miles). The IAU establishes rules, organizes international competitions, and supports athletes in the ultrarunning community. Its goal is to foster the development of ultrarunning as a sport worldwide, encouraging safety, fairness, and record-breaking performances. The organization connects national ultrarunning federations and aims to raise awareness of ultramarathons across diverse terrains and challenging environments.