The Challenge for Peace retraced the route used by drug traffickers to escape the Alemao favela when police moved in in November 2010.
BBC: Rio peace race retraces favela drug lords' escape route
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This is the third time the race has taken place in the Complexo do Alemao, a vast area of interconnected slums once ruled by some of the most powerful drug gangs in Brazil.
BBC: Rio peace race retraces favela drug lords' escape route