Birkie 2017 Event Registration Opens Today! Exciting New Schedule! Waves Fill Fast! Click here Friday – February 24, 2017 Kortelopet & Prince Haakon Ski the International Bridge! Finish in Downtown Hayward! Saturday, February 25, 2017 Slumberland American Birkebeiner Experience the New Start Line! Test Your Inner Warrior! Saturday, January 15, 2017 BirkieTour Tour the Birkie Trail Aid Stations & Untimed Food, Friends & Fun! Saturday, March 11, 2017 45NRTH Fat Bike Birkie World’s Largest Fat Bike...