Peterson had an outstanding amateur career, and was the 2003 National Golden Gloves Lightweight Champion.
In 2004 he lost twice to Mexican American Vicente Escobedo at 132 lbs, which cost him his place in Athens.
Peterson was in command for the entire fight as he logged scores of 120–108, 120–108, and 119-109 from the judges in winning the NABF interim lightweight title.
[1] On September 11, 2010, Peterson faced the undefeated Mexican American prospect Brandon Rios in a WBA title eliminator fight.
[2] Peterson lost the bout by disqualification in the 7th round due to repeated illegal low blows.