A 2012 Olympic gold medalist, Wieber was the 2012 U.S. all-around champion and floor exercise silver medalist.
Wieber’s international career began in 2007 when she won the uneven bars and balance beam at the 2007 Junior Pan American Championships in Guatemala City, Guatemala. Wieber won the American Cup all-around titles in 2009, 2011, and 2012.
At the 2011 World Championships, Wieber was a team and all-around gold medalist as well as a balance beam bronze medalist. She earned the all-around title at the 2011 Visa Championships and won gold for balance beam at the 2012 Secret U.S. Classic.