Saskatchewan's Chelsea Valois, right, pictured here with Kaillie Humphries. The pair had one of the most successful partnerships in the history of bobsleigh. Humphries, who is one of the favourites, is competing with another brakeman at Sochi. (Christof Koepsel/Getty Images)

Chelsea Valois of Zenon Park is the lone Saskatchewan athlete competing Tuesday at Sochi.

For two seasons, Valois was the brakeman for Kaillie Humphries. The pair dominated the World Cup bobsleigh circuit. They won back-to-back titles, and set a record by winning eight consecutive international events.

Humphries, who's considered a favourite for gold in Sochi, has since resumed her partnership with Heather Moyse, the brakeman who helped her capture the Olympic gold medal in 2010 in Vancouver.

Valois will be the brakeman on Canada's second pairing at Sochi, a sled piloted by Jenny Ciochetti

​The first run in the women's bobsleigh event gets underway at 9:15 a.m. CST. Valois is in the 13th pairing.

The second run begins at 10:20 a.m. CST.

The third and fourth runs are scheduled for Wednesday.