From the CrossFit Games Rulebook: “Any movement deemed uncommon, out of the ordinary or used to amend, shorten or change the accepted movement standard or range of motion including line of action of any event movement can and will be disallowed. It is the responsibility of the athlete to notify their judge or CrossFit Inc. of any questionable movement before the workout.”
Some top athletes chose to use smaller, metal plates in order to intentionally shorten the height of the jump on the bar-facing burpees in Open Workout 16.1.
Those who are found cheating in this way will receive a major penalty, and lose 15 percent of their reps on the workout. Athletes who are required to submit video must show that the proper equipment was used or else they will receive the same penalty.