The 45th annual American Birkebeiner has reached capacity and will close registration at 11:59 p.m. Thursday.
North America's largest cross-country ski race will be held Feb. 23, 2019, beginning near Cable, Wis., and finishing in downtown Hayward.
The Kortelopet and Prince Haakon races, held Feb. 22, are nearing capacity as well. Visit Birkie.com for details.
