Claim: There are four Beijing professional clubs, namely, Beijing Guoan (1951, based in the Chaoyang District), Beijing BSU (2004), Beijing BIT (2000), and Beijing BG Phoenix (1984).
Evidence: The table below lists all Beijing professional clubs. Beijing Guoan 1951 Beijing BSU 2004 Beijing BIT 2000 Beijing BG Phoenix 1984 The team is based in the Chaoyang District in Beijing and their home stadium is the Workers' Stadium with a seating capacity of 66,161.