here's the problem with training like that - you are being taught how to fight someone one on one in a controlled environment. you are learning under no real threat of danger, and the adrenaline high you get when fighting in a ring and getting a street fight are totally different.
i have seen friends of mine who have never got a second of training beat up people who have been training for years. the mentality that you have for street fighting is much different then that of a controlled fight, and the only thing that goes through your head is "it's either me or him".
sorry for being the negative nancy.
A while back we had this one guy who does MMA underground stuff get booked in. He fought a lot. Tall black guy, about 6'3, about 190 or so. Not real big, but lean and strong. Had an anger issue.
Went to a mod, thought he was Billy Badass. After a day or so, he started thinking that he ran shit, controlling the phones and so on with a few other black guys.
Well, he did something to piss off one of the mexicans, who never fight alone unless it's with each other. The mexican backs down, gets with a friend of his and they decide to solve their problem.
The second mexican walks up to the big black guy and slaps him while he's sitting down at a table. Big guy jumps up, faces off against the lil mexican dude. While he's doing this, the first mexican comes up behind the big dude and, while holding one of our very hard plastic cups in his hand like a rock, jumps off a table and hits the black guy on the back of his head as hard as he can. Big guy hits the ground and they both kick him while he's trying to cover up until we can get more officers in to break it up.
Big guy ended up needing stitches on the back of his head. Mexicans hurt their feet.
While a street fight can be like a ring fight, they can change up real fast. And when they do, the winner's the one who keeps his situational awareness.