There has also been a separate World Softball Doubles held under WSF rules, which require double pairs to be made up of two players from the same country.

In its most recent format, teams enter through their national governing body and the event is sanctioned by the WSF.

The championships are played on courts measuring 32 feet (9.75 metres) by 25 feet – a court size approved by the World Squash Federation in 1992 for the international doubles game.

A separate world championship event, known as the World Hardball Doubles Squash Championships (organised by the Squash Doubles Association), was also held once every two years for players of the hardball version of doubles squash (which is played with a different type of ball, on courts measuring 45 feet by 25 feet).

Countries who have competed include Australia, Canada, England, India, Ireland, New Zealand, Pakistan, Scotland and U.S.A.