Click on the video player above to watch live Friday as Canadian bobsleigh star Kaillie Humphries tries to hang on to her razor-thin World Cup lead when she competes in the women's race at Park City, Utah.

With only a 10-point edge over Jamie Greubel Poser, Humphries is in danger of falling out of first place if the American pilot wins the race, regardless of where Humphries finishes.

The opening run begins at 1 p.m. ET, followed by the second and final run at 2:30 p.m. ET.

Live coverage from Park City continues with both runs of the men's two-man event, at 8 p.m. ET and 9:30 p.m. ET. Canada's Justin Kripps sits fourth in the World Cup standings heading into the race.

On Saturday, watch both runs of the four-man race live at 7 p.m. ET and 8:30 p.m. ET. After making history last week by piloting the first all-female crew against men, Humphries and her team will compete again in the four-man. Kripps enters in eighth place.