The research aims to evaluate the Muscle Balance Ratios by using Isokinetic Dynamometer (Biodex3) according to the athletic achievement level for the Karate “Kumite" players as a determinative factor for the training programs. Twenty-four Kumite players were included in the main sample which participating in the Republic Open Championship for juniors and youth, by selecting (3) players obtained in the first, second, and third position in the following weights (61 Kg, 68 Kg, 76 Kg, and above 76 Kg).Also, twelve players who had not achieved any position in the championship were selected from the same weights. The most important results were: There are statistical significant variances between the players obtaining positions, and the players not obtaining positions in the same weight in favor of the players who obtained position in some variables of the Muscles' Balance in the knee joint; including Peak Torque of Flexion, Acceleration Time of Flexion, Peak Torque of Extension, and Deceleration Time of Extension. Also in some variables of the Muscles' Balance in the trunk joint, including Agonist/Antagonist Ratios, Peak Torque of Flexion, Acceleration Time of Flexion, and Peak Torque of Extension and Also in some variables of the Muscles' Balance in the elbow joint, including Agonist/Antagonist Ratios, Acceleration Time of Flexion, Deceleration Time of Flexion, Peak Torque of Extension, and Deceleration Time of Extension in favor of the players who obtained position. There are not statistical significant variances between the players obtaining positions and the players not obtaining positions in the same weight in some variables of the Muscles' Balance in the knee joint, including Agonist/Antagonist Ratios, Deceleration Time of Flexion, and Acceleration Time of Extension, Also in some variables of the Muscles' Balance in the trunk joint, including Deceleration Time of Flexion, Acceleration Time of Extension, and Deceleration Time of Extension And also in some variables of the Muscles' Balance in the elbow joint, including Agonist/Antagonist Ratios, Acceleration Time of Flexion, Deceleration Time of Flexion, Peak Torque of Extension, and Deceleration Time of Extension in favor of the players who obtained position , There is a direct relationship between the Muscles' Balance Rations and the Athletic Achievement Level, which can be considered as a determinative factor for the training programs for “Kumite" Players.