Brown began playing chess at the age of seven and achieved National Master status at age twelve. He won a series of significant scholastic tournaments, such as the National High School Chess Championship in 2012, and the National K-12 Championship in 2009 and 2011.
In terms of international competition, Brown competed for the United States team at the World Youth Chess Championships, achieving a ranking of 11th place in 2009. He also participated in the 2014 United States Chess Championship after qualifying at the U.S. Junior Chess Championship.