Sinister 7 Ultra - 2026

Sinister 7 Ultra may be the greatest challenge of your life. The 100-mile (161km), 50-mile (80 km), 50-km courses and 21-km will take you through the most rugged, remote and beautiful terrain in Alberta’s stunning Rocky Mountains. With over 6,600m of elevation gain across the course, this race will punish those who are not prepared. The 100-mile is open to soloists and teams of 2 to 7 who have 30 hours to complete the gruelling event. The course is split into seven stages ranging from 16.7 km to 36.2 km. The race’s name is inspired by the treacherous Seven Sisters Mountain that looms over much of the course. The 50-mile consists of four stages, 50 km is split into three stages and a half marathon. As of 2023, they have a Kids’ Race that is ~4km in length. This is a great way for kids and families to get involved!