Set reachable goals to encourage a child. When your child sees that he can actually reach a pre-set goal, this works wonders in keeping him motivated. Make the goals set for the child age-appropriate so that they can easily be attained. Setting the goals too high will cause the child to become frustrated, become discouraged and give up.
Encourage the child constantly. This area can never be overdone if looked at from this perspective: If your child knows that he will receive praise for his efforts or achievements, he is more likely to try harder.
Reinforce your child’s confidence level by telling him often that he can achieve his goals, whether they are large or small. This form of motivation applies well in sports-related activities. Constant encouragement to "hit the ball, you can do it," will eventually result in them actually hitting it!