The ECO Cup was a football competition for members of Economic Cooperation Organization.
Previously it was known as RCD Cup, RCD abbreviates Regional Corporation for Development and was an economic cooperation between Iran, Pakistan and Turkey from 1964 to 1979.
In 1992, Afghanistan, Uzbekistan, Tajikistan, Turkmenistan, Kazakhstan, Kyrgyzstan and Azerbaijan joined ECO.
[3] The countries that competed in one or more tournaments are Iran, Turkey, Pakistan, Kazakhstan, Kyrgyzstan, Tajikistan and Turkmenistan.
RCD Cup from 1964 to 1974 was a three nation tournament and it had a league format structure.