Then thats crazy, I can understand the quick learning curves for the small guys, but super lightweight, that's surprising
Checking out some of his fights on YT, he still seemed to carry a Muay Thai stance/style into his professional career - more a case of making a few adjustments and going for it, rather than building as a boxer from the bottom up. Probably just a guy with big attributes (power, chin, endurance) along with an awkward style, which together is a handful for most fighters. Sahaprom to me is more impressive, as he was a much more refined fighter at a similar stage in his career. He looks like a seasoned pro in the Chuvatana fight, which is remarkable considering that he had only had 3 pro fights.
To be fair, it almost seemed written into his contract that Patterson would get knocked down or hurt in every fight at that point in his career. He wasn't badly hurt, and gave Rademacher a pasting after he got up.
I guess Veerapol Sahaprom deserves mention as he won the WBC International Super Flyweight title in his first professional boxing bout and won the WBA World Bantamweight title in his fourth professional boxing bout.