Despite his late start, Weir was the World Junior Champion in 2001 at the age of sixteen.

They were the 1990 and 1992 World Junior Champions.

They have become World Junior Champions on three occasions (2003, 2005 and 2007).

He was the first ever World Junior Champion in 1951.

She became World Junior Champion in 1999 and 2000.

In 2006, he became World Junior Champion in the men's four.

Only seven months later he became World Junior Champion, in his first race outside Kenya.

She is a former Canadian and World Junior Champion.

She is a former World Junior Champion skip.

In 2009, he was the World Junior Champion in the giant slalom.