Before the early 1970s Iran did not have an official national league.

It began in February 2008, and was the first official national league in England.

A few years later, some other public schools joined to form an official league.

Subsequent professional black baseball clubs played each other independently, without an official league to organize the sport.

However, in other official leagues, it is considered just one more legal play in intense competition.

The club's formal debut in an official league was on 8 November 1931.

The official league was founded in 2007, yet amateur leagues have existed since the early 1980s.

Strong support would mean the founding of an official league next summer.

The club was founded in 1966 and joined the official Belgian leagues one year later.

It was a heptagonal competition, competed by the top seven teams in the table of the official league.