Basketball is considered as one of the most dynamic sports. The founder of basketball is considered to be dr. James Naismith. The institution in charge of Croatian basketball is the Croatian Basketball League (HKS), and the official rules of basketball have been adopted by the International Basketball Fedration (FIBA). The techniques and tactics in basketball is divergent and every position in the game has it own role to play. The trainer is the key person for leading the basketball team and he is tasked to lead the team to achievable goals. In the preschool years sport is very important for the development of children. A key role in that development of children is up to trainers, teachers and parents. Mini basketball is basketball adapted for children between the ages of five to twelve years old for boys and girls. It enables children to get to know the rules of basketball in an interesting way through playing.