Welcome to the Birkebeiner Ski Race! The Birkebeinerrennet is one of the oldest and most challenging races in the Worldloppet series with 18’000 participants. This cross-country course is 54 km long. The start is at Rena; the finish is reached at the Birkebeiner area at Lillehammer, the famous stadium from the 1994 Olympic Games. All competitors must carry a backpack that weighs at least 3.5 kg. This backpack weight is supposed to mirror the weight of the baby who became the future King Häkon.