Vol. 7, Issue 2, Part D (2025)

The purpose of this paper is to identify the values of some biomechanical variables of the parallel stance ready position for the serve in Middle Euphrates tennis players, and identify the relationship between the values of some biomechanical variables of the parallel stance ready position for the serve and accuracy in Middle Euphrates tennis players. The researcher selected the descriptive method, as it suits the nature and problem of the research.The sample was selected randomly and included (7) players from the Middle Euphrates advanced players. The researcher analyzed three attempts for each stance position, making the research sample consist of (21) attempts per player for the main experiment. One of the most important results reached by the researcher is that: There is a significant correlation between the variables of trunk inclination angle and elbow joint angle in their preparation stance and accuracy in the parallel stance, and there is a significant correlation between the variable of ball strike height and accuracy in the parallel stance. One of the most important recommendations recommended by the researchers is that: In the parallel stance, emphasize bringing the hitting arm closer to the player's body behind the back. This is achieved by increasing the angle of the shoulder joint of the hitting arm, placing it level with the elbow joint. This increases the angular acceleration with which the racket moves to achieve high speed, and increases the flexion of the right and left knee joints to lower the body's center of gravity for balance.