In judo, which action results in scoring an ippon?

The correct answer is Executing a perfect throw.

Explanation:

In judo, an ippon is the highest score a competitor can achieve and instantly decides the victory, ending the match immediately upon being awarded.

An ippon is awarded when a competitor executes a throw with maximum control, force, speed, and lands the opponent largely on their back. A perfect throw fulfills all these technical criteria simultaneously.

Let's analyze why the other options do not result in scoring an ippon:

• Stepping outside the mat: This is considered a penalty (shido) for stepping out of bounds, not a scoring action.
• Holding opponent’s uniform: Gripping the uniform (judogi) is a standard part of judo. Illegal grips or stall tactics may lead to penalties, but proper gripping alone does not score points.
• Verbal warning: A warning is a disciplinary action issued by the referee for non-combativity or rules violations, not a score.