How is squash different from racquetball?

Answer 1

The balls are very small and come in varying speeds.

Answer 2

Though the sports of Racquetball and squash differ in many ways, there are a select few major differences which are relevant to casual play.

One main difference is the equipment used in each sport. Racquetball racquets are shorter, with a maximum length of 22 inches. Squash rackets have a maximum length of 27 inches. A squash ball is significantly smaller (4 cm in diameter, as opposed to 2.25 inches) than a racquetball ball and is made of a much more elastic rubber. The result is that a squash ball does not conserve nearly as much energy in collisions, slowing the ball down during rallies.

Squash also has "out-of-bounds" areas marked around the court, especially the bottom .48 m of the front wall. This significantly changes the strategies and mechanics of the game in comparison with racquetball.