Martial sport (ספורט לחימה) is a form of sport that uses only a specific set of elements and techniques to compete in a set timeframe and arena. Martial sport differs from Martial art and Martial, self defense, systems not in the variety of techniques but in the main rational - The main goal of martial sport is winning a competition. The goals of martial arts vary and include winning a sparring bout only as one of the goals.
Martial sport usually develops high ability in a predetermined set of combat techniques and thus might help to achieve other goals in actual non-competitive fighting.
A list of martial sports documented on AKBAN wiki
Video of Judo competition
Video of Taekwondo competition