Canada's Marielle Thompson wins women's ski cross

Marielle Thompson has won Canada's eighth gold medal of the 2014 Winter Olympics with victory in the women's ski cross in Sochi.

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The 21-year-old led a Canadian one-two finish as her compatriot Kelsey Serwa picked up silver.

Serwa was never a threat to Thompson but was in danger of being caught herself as France's Ophelie David gave chase.

However, the 37-year-old veteran fell on one of the closing jumps, allowing Sweden's Anna Holmlund to coast home uncontested for bronze in foggy and rainy conditions in Russia.