Most BJJ instructors tell their students that the guard is the heart and soul of Jiu Jitsu. This is true, but why?
If you look at the matches that beginners lose in tournaments, and examine the most statistically accurate reason why they lose... it all comes down to preparing for the worst case scenario.
The majority of the time, they are not good enough at escapes... and for those who are... they are not good enough at guard work.
Once proficiency develops for the guard, the % of matches that are won at the beginner level increase by a large number. (This is referring to students with NO prior grappling experience.)
Now a match between two awesome guard players: JT Torres, and Michael Langhi