The 4th Pan American Games were held from April 20 to May 5, 1963 in São Paulo, Brazil.
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A The medal counts for the United States, Canada and Argentina are disputed. (details)
According to the Brazilian Olympic Committee, twenty-two nations sent competitors to São Paulo, but only twenty-one were listed. Barbados took part in the Pan American Games for the first time. Costa Rica, Haiti, Nicaragua and the Dominican Republic competed in 1959 but did not participate in the 1963 Games.
- ^ São Paulo 1963 (in Portuguese), Rio de Janeiro, Brazil: Brazilian Olympic Committee, retrieved October 30, 2011.
- ^ Harris, Alan (September 20, 2011), "Pan Am medal prospects not looking good", The Barbados Advocate, retrieved October 30, 2011.
- ^ Chicago 1959 (in Portuguese), Rio de Janeiro, Brazil: Brazilian Olympic Committee, retrieved October 30, 2011.