Worldloppet (WL) is a union of the largest cross-country ski races in the world, founded in 1978.
There are 14 races in WL at the present. WL has also about Worldloppet Passport Holders;
1400 of them are recognised as the Worldloppet Gold.

To become a Worldloppet member, a skier has to apply for a World-loppet passport.
The official WL passport contains a special page for each event in the in the WL series.
After completing each main or short WL race, a skier should ask for the official stamp
of the event to be placed in his/her WL passport.

After completing 10 of the 14 main or short races (see Liens) and if the WL passport is
stamped correctly the skier should send his/her WL passport to the Worldloppet General Secretariat.

The skier will then be awarded with the personal Worldloppet Master's diploma and a gold or
silver plated pin. In addition, each Worldloppet Master will received a special number.

	For the year 2016, several skiers from Luxembourg are Masters :
	SERVAIS Emile - Master 298
	MANIORA Yonel - Quintuple Master 853 - 1967 - 3133 - 3833 - 4243
	HAZARD André - sixtuple Master 935 - 1765 - 1925 - 3000 - 3295 - 3660
	MARQUET Xavier - Master 1192
	NEY Nico - Master 1261
	RINCK Romain - Quintuple Master 1337 - 1682 - 2014 - 3547 - 4247
	LEYDER Jean - Master 1602
	SCHWEINBERGER Bernd - Triple Master 1610 - 2126 - 3726
	KINSCH Clémy - Master 1863
	DE CILLIA Dario - Master 2055
	SCHMIT Jean-Paul - Master 3012
	ROSE Christopher - Master 4266
	REUTER Emile - Master 4295
	KOSMALA Herbert - Master 4339