Which of the following qualities is least necessary for achieving success in Taekwondo competitions?

In the context of Taekwondo competitions, success is heavily influenced by physical and mental attributes essential for performance. Mental resilience allows athletes to stay focused, cope with pressure, and bounce back from setbacks during matches. Agility is critical as it involves quick movements and the ability to change direction rapidly, which are essential for executing techniques effectively. Stamina plays an important role, as competitions can be physically demanding, and athletes need to maintain their performance over multiple rounds.

Extensive knowledge of martial arts history, while beneficial for a broader understanding of the discipline, does not directly impact an athlete's performance in competitions. Knowing the historical context or background of various techniques does not provide an immediate advantage during a match where physical skills and mental toughness are paramount. Therefore, while appreciating martial arts history enriches an athlete's experience and knowledge, it is the least necessary quality for achieving success in the competitive arena of Taekwondo.