Ski Classics and Worldloppet
Ski Classics is a series of long-distance cross-country ski races in classic style that has been held since 2011. Ski Classics Pro Tour Season
Worldloppet is an international sports federation of cross-country skiing marathons, founded in June 10th 1978 in Uppsala, Sweden.
The aim of Worldloppet is to promote the sport of cross-country skiing, by focussing on popular skiing through the various ski races around the world.
