Which action constitutes a "break in the barrier" during a rodeo event?

Leaving the gate too soon constitutes a "break in the barrier" during a rodeo event because it refers specifically to a violation of the start procedure in timed events like roping or barrel racing. The barrier is a rope or gate that keeps the competitor in a fair position relative to the animal at the start of the performance. When a competitor crosses this barrier before the signal is given (usually the sound of a horn), it indicates that they have gained an unfair advantage, and thus, the action results in a penalty, typically a time sanction.

In contrast, falling off the animal, not holding on during dismount, and ignoring time limits pertain to other aspects of rodeo performance and rules but do not specifically relate to the breach of the starting barriers. Falling off the animal may result in disqualification but does not affect the timing at the start. Similarly, not holding on during dismount and ignoring time limits involve different rules and consequences that are not classified under "break in the barrier."