My old Karate sensei told me that they were just a myth.

I've been looking everywhere for info on this but couldn't find any that wasn't based on Dr. Kano's own statement. The deeper and deeper I dig through google the more and more convinced I become that no such matches ever took place. Does anyone have some sort of undeniable proof of these matches?
If it didn't happen why would Dr. Kano lie about it?


Also, I apologize if this is posted in the wrong place, but since this is the Jujutsu sub-forum I figured I'd ask for you guys take on it.
If it would fit somewhere better would a mod please move it?