Krav Maga Practitioner :: Gillan Divecha Can a smaller, shorter, weaker person defeat a relatively larger, taller, stronger opponent ? YES* Does size really matter in a fight? NO* *Particularly if you practice KRAV MAGA. Conventional and traditional forms of fighting - Wrestling, Boxing, Sumo - are competitive contact sports where one’s size and weight matter seriously. The same holds true with the traditional Martial Arts of Karate, Tae Kwon Do, Judo. . . where divisions based on weight classifications are a requisite in tournaments and competitions.