Canada's Brian McPherson and Britain's Matthew Richardson claimed titles as the International Bobsleigh and Skeleton Federation (IBSF) Para-sport World Cup season began in Park City in Utah today.
McPherson claimed the seated bobsleigh title at the Salt Lake City 2002 Winter Olympic track, clocking a combined time of 1min 39.45sec after his two runs.
That saw him edge out home American slider Aaron Lanningham, who was timed at 1:39.63.
Third place went to Alvils Brants of Lativa, who stopped the watches at 1:39.80.
Canada's world champion Lonnie Bissonnette, also the defending World Cup champion, had to make do with fourth in the opening event.
His combined time was 1:39.84.
In the Para-skeleton competition, Richardson slid to success by finishing in 1:46.13 after his two runs.
That meant American Eric Eierdam, the World Cup and World Championship holder, could only take second place in 1:47.05.
Bronze went to another US slider as Ryan Gautieri came home in 1:47.92.
This was the first Para World Cup since bobsleigh was accepted for the Beijing 2022 Winter Paralympics.
The International Paralympic Committee (IPC) provisionally approved the inclusion of the sport at a meeting in Rio de Janeiro in September.
The application for skeleton to be included on the programme was not successful though, due to the sport "not fulfilling a number of the criteria needed".
A second World Cup will be held in Park City on Wednesday (November 23).