The circuit began in 1970, two years after the Open Era when tennis became professional, and has undergone several name changes and slight alterations to the format, in line with overhauls of the sport by the Association of Tennis Professionals.
The circuit began in 1970, two years after the Open Era when tennis became professional, and is still running as of 2011. It has undergone several name changes and slight alterations to the format, in line with overhauls of the sport by the Association of Tennis Professionals.