As skip of the Scotland team, Muirhead won the 2011 European Championships in Moscow, the 2013 World Championships in Riga, and the 2017 European Championships in St. Gallen. She is also a four-time World Junior Champion (2007, 2008, 2009 and 2011). A three-time Olympian, she represented Great Britain at the Winter Olympics in Vancouver 2010, Sochi 2014 and Pyeongchang 2018. In Sochi, she became the youngest ever skip, male or female, to win an Olympic medal. She curls out of the Dunkeld Curling Club based in Pitlochry.