Born in São Luís, Maranhão state,[1] he started his career in 1902, with Mackenzie College, where he translated the football rules to Portuguese.

[2] After his retirement, he started a coaching career, managing America in 1916, winning the state championship in that year.

[2] Belfort Duarte was murdered on his birthday, 27 November 1918, in a favela located in Campo Belo, Minas Gerais state, when he was trying to hide from the Spanish flu.

[3] The award is given to the football player who completes ten years without being booked with a red card.

[1] This award was named after Belfort Duarte because in a game he mentioned to the referee that he committed a foul in his club's penalty area.