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.
Chupacabra 50k
The Chupacabra 50k is run in the heart of the most beautiful trails of midwestern Texas at Copper Breaks State Park. If you’re looking for

