In fact it is because Judo is practiced as a competitive contact sport that it is inherently effective on the street and in the field of combat.
There you have my top ten reasons why sport judo is effective for combat and self-defense. Certainly, sport Judo has its shortcomings, but when you examine all the martial arts and self-defense systems in the world today, sport judo still holds its own as one of the best ways to prepare yourself for a physical conflict. In fact it is because Judo is practiced as a competitive contact sport that it is inherently effective on the street and in the field of combat.