The Blue Stage introduces children to tennis with games and fun activities. Kids learn the basics, including rallying, using adapted equipment like balloons, big balls, and beanbags.

Orange stage players use a higher bouncing ball (50% compression) on a slightly larger court. They play on a three-quarter court with a regular net.

The red ball is larger and has 25% compression, making it easier for young players to hit. Smaller courts and nets help kids move around and succeed. Red level players can be beginners, improvers, or advanced.

Green stage players use a higher compression ball (75% of a yellow ball) on a full-size court. They're often older kids new to tennis or advanced players from lower stages.