Demetrius Andrade, sponsored by A Team Promotions and Matrix Arms, obtained arguably the most successful amateur boxing reputation among all Rhode Island fighters in history. A Providence native of Cape Verdean descent, southpaw Andrade began boxing in 1994 at the age of 6. His nickname "Boo Boo" quickly became well known among the locals and he later became a recognized name across the United States.
Andrade won the United States Amateur Boxing Championship in 2005, and repeated it in 2006 when he also won the National Golden Gloves. He again won the National Golden Gloves in 2007, and won Gold at the 2007 World Amateur Boxing Championships, where he beat Kakhaber Zhvania, Dmitrijs Sostaks, 2005 silver medalist Magomed Nurutdinov, future champion Jack Culcay-Keth, and Adem Kılıçcı in the semifinal round. He beat Non Boonjumnong of Thailand in the finals, a match in which Andrade inflicted a standing eight count upon Boonjumnong and was leading by a score of 11-3 in the second round when Boonjumnong retired with an injury to his right arm.
Andrade accomplished one last amateur endeavor before going professional. At the Olympic trials he defeated hard-punching Keith Thurman 27:13. In 2008, Demetrius Andrade was honored with the satisfaction of representing the USA in the 2008 Beijing Olympics and he became known as one of the favorites to win a gold medal. He overcame Kakhaber Zhvania and the highly regarded Russian Andrey Balanov 14:3 to advance to the quarterfinals.
Demetrius became a professional boxer and had his first pro fight in October 2008. He defeated Patrick Cape at Northern Quest Casino, Airway Heights, Washington in a second round knockout. He went on to win a TKO over Eric Marriott before making his Friday Night Fights debut against Tom Joseph on March 6 with a 1st round TKO victory. Only 2 weeks later, Demetrius beat Arnulfo Javier Romero in a second round KO. On June 19, 2009 he won in a unanimous decision against Tony Hirsch and followed up with another KO against Chad Greenleaf in the second round. Andrade went on to defeat John Williams by TKO in the 6th round, and Chris Chatman by unanimous decision. Andrade’s record jumped to an impressive 9-0 record after demolishing Italian boxer, Bernardo Guereca, with a 1st round KO. Demetrius defeated his next ten opponents, including five fights ending by KO and the others ending by unanimous decision.
An opportunity arose when a vacant World Boxing Organization Light Middleweight title would be decided by one match between Andrade and Vanes Martirosyan. Martirosyan was undefeated with 33 wins already under his belt. On November 9, 2013, Andrade defeated Vanes Martirosyan via split decision to win the vacant World Boxing Organization Light Middleweight title despite being knocked down in the first round. In Andrade’s first title defense, he dominated his mandatory opponent Brian Rose, a British native. This fight advanced Demetrius “Boo Boo” Andrade to an outstanding 21-0 on June 14, 2014.
After 13 months with no title defenses and none scheduled, Andrade was stripped of the title by the World Boxing Organization Committee. October 17, 2015, he won the vacant World Boxing Organization International Light middleweight title by knocking out Dario Fabian Pucheta in the second round.