A ball with more bounce, and hang time, allows more time to play the ball, and a bigger ball is easier to see. Players may also opt for a bouncier ball in cold weather conditions as the ball will not stay as warm and will bounce less.
The double yellow dot Pro squash ball is the official ball of the WSF and PSA and is used in professional international competitions. The Pro has the least bounce out of the four types of balls and is most suited to professional, tournament, and experienced club players.
The single yellow dot is the Competition ball. The Competition ball is the same size as the Pro, but with 10% more bounce. This ball may be used by advanced players in training, or by beginner to club level players in gameplay.
Next is the red dot Progress ball which is 6% bigger than the Pro and bounces 20% more. And lastly there is the blue dot Intro ball which is 12% bigger than the Pro with 40% more bounce. Both the Progress and Intro balls are designed for recreational players or beginners looking to develop their technique and skills.
Watch the video below for a good explanation on how to choose the correct type of squash ball and ensure you have the right equipment to have fun on court.