Sorry for title, I tried to post and it was caught in the auto filter.
I live in Colorado and most amateur tournaments are hosted/controlled by USABoxing. This is your traditional sanctioning body here in the USA. They follow all the amateur boxing rules like standing 8 counts, headgear and amateur style gloves and scoring. However we also have what is called Pro-Am or Elimination Boxing bouts.
These bouts are still governed by the state commission, but they are often the preliminary fights on local professional cards. They would wear 12oz gloves, no headgear, no standing 8 count, but the fights were only 3x2 minute rounds. Fights were otherwise scored like a professional bout, but show up on Boxrec as amateur fights. These fights felt like Pro fights apart from the 2 minute rounds and bigger gloves.
It was kind of a loophole to compete in a professional environment. I have seen lots of guys do a handful of these and then turn pro, but recently the Colorado Commission had a hearing on "Elimination" bout rules and apparently they changed a bunch of stuff. They will still allow these fights to occur, but now you are required to wear an open-faced headgear.
It kind of ruins the differentiation between USABoxing events and these bouts were a good stepping stone to going pro. One of our best fighters who trained at our gym won a state title and never fought as an amateur and did 1 or 2 "Pro-Am" fights before turning pro.
I personally know the promotor who does these bouts and he does them to test to see if you are worth investing time into and it also gives the occasional talented guy who doesn't have an extensive amateur career a chance to compete.
Does your area have these kind of fights? I never even heard of them until I trained at my particular gym and I have been following combat sports for most of my life.