Career
Following residence in a refugee camp in the Philippines, Nguyen"s family moved to the United States. In 2001, he received a full scholarship to Northern Michigan University, site of one of the three United States Olympic Training Centers. In the United States Challenge, Dat fought Mickey Bey (the eventual 2004 Olympian) but lost to him on a tie breaker.
Following his departure from the United States Olympic Education Training Center, Dat decided to turn professional and made his debut on May 1, 2004 in Atlantic City, New Jersey.