XC, its short for cross country.
Cross country skiing is a Winter Olympic sport. Cross country cycling is a Summer Olympic sport.
cross country skiing
That is the sport known as "biathalon".
David Archuleta's favorite sport is cross country.
xcountry is technically not a professional sport but there are amateur competitions
Cross Country is a real sport, Everything else just plays with balls.
Track and Cross Country
the sport of long distance cross country running