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.

橙级球员使用弹跳力更高的球（压缩比50%），场地稍大一些。他们使用四分之三球场地和标准球网进行比赛。

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.

绿级球员在标准尺寸的球场上使用压缩性更高的网球（约为黄球的75%）。他们通常是刚开始接触网球的年龄较大的孩子，或是来自低级别联赛的进步球员。