What is the deduction for under-rotation of salto vaults?

The deduction for under-rotation of salto vaults is 0.1. Under-rotation is assessed when a gymnast lands with their feet close to the floor without fully completing the skill in the air, which typically happens when they fail to rotate enough and land with their weight heavily forward or backward. This minor failure to achieve the full rotation is viewed as a slight error in execution, which is reflected in the comparatively low deduction of 0.1 points.

In gymnastics judging, smaller deductions are commonly associated with less severe mistakes, while larger deductions are reserved for more significant errors in performance or technique, which is why a higher score deduction like 0.3, 0.5, or 0.6 is not applicable in this situation. Understanding the grading system is essential as it helps differentiate the severity of the gymnast's execution and performance issues.