 In 2000, she won the gold medal in the junior all-around at the American Classic as well as the beam and floor titles.She then won the bronze medal in the junior all-around at the 2000 U.S. National Championships and became the junior national champion on floor.Seen as a junior international elite to watch for her expressive dance and strong balance beam performances, Yim quickly progressed to become one of the top U.S. gymnasts during the 2001-2004 quadrennium.