Bill Zadick was a resident athlete at the U.S. Olympic Training Center in Colorado Springs, Colorado, from 2004-2008. His intensive training there helped him reach the pinnacle of the international amateur wrestling ranks when he won the gold medal at 66 kg/145.5 pounds at the
2006 FILA Wrestling World Championships in Guangzhou, China. He won bronze at the 2007 Pan-American Championships. Zadick's international wrestling career began in 1996, after he graduated from the
University of Iowa. He competed in the 2001 World Championships, placing seventh. Zadick was the runner-up at 66 kg at the U.S. Olympic Team Trials in 2000 and 2008. He was a three-time U.S. Nationals finalist in 2003, 2006, and 2008, and a two-time World Team Trials runner-up in 1999 and 2002. ==College wrestling career==