How many rotations does a BB dismount require for 2 1/2 at level 10?

A balance beam (BB) dismount with a rating of 2 1/2 twists at level 10 requires a total of 2 1/2 rotations. This specific dismount involves the gymnast completing a full twist followed by an additional 1 1/2 twists before landing. The rotation is calculated based on the twists performed during the dismount: the gymnast initiates their twist as they leave the beam and continues to rotate until they complete the required number of twists in preparation for landing.

In competitive gymnastics, the precision of these rotations is essential for scoring, and achieving the correct number of rotations is critical for fulfilling the requirements of the routine. In this context, it is clear that a 2 1/2 rotation is necessary for this level, and thus, the correct choice reflects the requirement of such a dismount in a level 10 routine. During competitions, judges look for the execution of these dismounts, which must meet the specified criteria to earn full credit.