Ewan MacDonald made his Olympic debut at the Salt Lake City 2002 Games. Following this, he represented Great Britian at the following two Winter Olympic Games.
Ewan competed at the Vancouver 2010 Winter Olympic Games as a member of the Team GB men’s curling team. The team placed fifth after losing their play off match to Sweden.
Prior to this, Ewan had already experienced Olympic heartbreak when, at the Turin 2006 Games, the men's curling team finished fourth, just missing out on a medal.