Pacing refers to the performer’s control over the timing of skill execution. Therefore, some skills are self-paced, while others are externally paced.
Self-paced skills are where the performer determines the time and pace of the skill execution.
Examples of self-paced skills include serving in a tennis match or taking a corner kick in soccer.
Externally paced skills are where the factors external to the performer set the time of execution of the skill.
Examples of externally passed skills include dancing, gymnastic, areobics and iceskating as the skills must be performed in time with music. Other examples include returning a serve in tennis, hitting a cricket, softball or baseball.