The American Birkebeiner is the US event in the World Loppet series. The largest ski race in the United States, this race is also a part of the SuperTour this season.
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Continental CupMarathonsAmerican Birkebeiner
BrainspiralDecember 10, 2008 BrainspiralDecember 10, 2008The American Birkebeiner is the US event in the World Loppet series. The largest ski race in the United States, this race is also a part of the SuperTour this season.
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