Six female intercollegiate varsity softball players and six male intercollegiate varsity baseball players were filmed from overhead while batting a wiffle ball off a batting tee at hip height. Movements of the hips, trunk, upper body segments, and bat were analyzed. Group comparisons indicated that males had higher peak linear and, angular velocities for all body segments measured, except for hip angular velocity. Males reached peak segmental velocities in a sequence proceeding from proximal to distally adjacent segments. Females' peak segmental velocities did not follow this sequence. Bat kinematics followed similar patterns and magnitudes. The results of this investigation suggest that both body size and technique may account for the faster bat velocities of males. (Author/JD)