Green ball is a great way for players to continue their progress from orange ball mini tennis. It is played on a full tennis court, with bigger rackets and balls that are a little softer than yellow balls. It’s the next stage to go through before you start playing with a full compression yellow ball on a full sized court and it will help players work on and improve all aspects of their game. Yellow ball is full court tennis with full compressions balls. Starting to think tactically and learning to hit with depth and spin.