PT281 Ultramarathon is a race of extreme difficulty, due to its mountain characteristics (D+ 6,776 meters / D- 6,900 meters) and intense/dry heat (40º C), placing it somewhere between Badwater (USA) and BR135+ (Brazil).
The course is made in a continuous way, for more than 280 km, on a self-sufficient basis and with a time limit of 66h.
Despite that, there are several checkpoints along the route, where athletes can rest and recover energy.