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At 17 in 1984 he won the Teen St. Petersburg, Teen North Florida, Novice North Florida, Teen West coast Florida and his class at the Teen Nationals (losing the overall to 19-year-old Franco Santoriello). The following year, he won the Teen Florida and middleweight class of the Teen Nationals (losing the overall to 19-year-old Shawn Ray). Then, in 1986, at age 19, the 5'3" densely developed middleweight completed one of the most shocking sweeps in body-building history, winning not just the Teen Nationals overall, but also his class at both the Jr.Nationals (eight future pros were in that contest, including Ray) and the Nationals (ahead of Santoriello). Twenty-two years later, his record for earning a pro card at the NPC Nationals as a teenager still stands. At 20 the following year, he placed second in his pro debut. One of the most indomitable amateurs of all time, DiMora competed only our times in the pros and retired from he stage at 25.