A Grand Slam in the sport of real tennis is earned by a player who holds the following titles in the same calendar year: The concept was borrowed from lawn tennis's Grand Slam. As not all events have been played in the same season, 1981 was the first year it was possible to attain all four major titles. In 1984, Chris Ronaldson was the first to win the Grand Slam. In 2000 and 2001, Robert Fahey earned back-to-back Grand Slams, and earned a third Grand Slam in 2008. Camden Riviere earned Grand Slams in 2017 and 2019. For women, Charlotte Cornwallis completed it in 2006, while Claire Fahey has done so on six occasions so in 2010, 2011, 2012 2014, 2017 and 2019.

Men's singles

Prior to 1979, the British Open Singles Championship was awarded to the winner of the Prince's Club Shield, including after the dissolution of the Prince's Club in 1940. The championship was held as a challenge event, where an event was only held should the incumbent title holder be challenged, as such it was not held annually. After the 1979 Championship between Howard Angus and Chris Ronaldson in a combined challenge for the World Championship, it was agreed that the British Open would continue as an annual event and that the World Championship would remain a challenge event.

Ladies singles

Men's doubles

Ladies doubles