Mark Greenwald (born December 1, 1968) is an American

speed skater Speed skating is a competitive form of ice skating in which the competitors race each other in travelling a certain distance on skates. Types of speed skating are long track speed skating, short track speed skating, and marathon speed skating. ...

. He competed at the

1988 Winter Olympics The 1988 Winter Olympics, officially known as the XV Olympic Winter Games (french: XVes Jeux olympiques d'hiver) and commonly known as Calgary 1988 ( bla, Mohkínsstsisi 1988; sto, Wîchîspa Oyade 1988 or ; cr, Otôskwanihk 1998/; srs, Guts� ...

and the

1992 Winter Olympics ) , nations = 64 , athletes = 1,801 (1313 men, 488 women) , events = 57 in 6 sports (12 disciplines) , opening = 8 February 1992 , closing = 23 February 1992 , opened_by = President François Mitterrand , cauldron ...

. In 2010, he became the Executive Director of US Speedskating.

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* 1968 births Living people American male speed skaters Olympic speed skaters for the United States Speed skaters at the 1988 Winter Olympics Speed skaters at the 1992 Winter Olympics Speed skaters from Chicago {{US-speed-skating-bio-stub