Worlds have been held in 13 countries across four continents: North and South America as well as Asia and Europe.
The 2022 World Championships were held in San Luis Potosí, Mexico, which was the first time Worlds was in Mexico since 2000, when it was also held in San Luis Potosí.
The 2022 Worlds introduced Mixed Doubles for the first time, and re-introduced the Team Competition (best of three matches: two singles & one doubles), which was held at Worlds until 2012, after which the team winners were determined by the points earned in the individual competitions.
Also, the 2022 World Championships used a best of five games match format with each game to 11 points, win by 2, with rally scoring, as used in other sports like squash and volleyball.
Previously, racquetball games used side-out scoring, where players scored points only when they had won a rally which began with that player serving.