Children attending this course need to be a member of Gotherington Tennis Club which costs £10 per year and is paid directly to the club, for more information on membership please visit https://clubspark.lta.org.uk/GotheringtonTennisClub/Membership/Join This course is for mini orange and green players. Mini Orange- Orange ball mini-tennis uses a firmer ball and a larger court than the red ball version. The orange ball is about 50 percent slower than a regulation yellow ball. The court measures 59 feet long and just more than 21 feet wide for singles, or 27 feet wide for doubles. Racket heads are 23 to 25 inches long. Mini Green Tennis is the final phase of the Mini Coaching structure and is played on a full size Tennis Court with a lower compression ball that gives players more time.