I do bet on these boxing matches, even if that boxer is not that popular or famous I also bet on him as long as I knew or know his skills as a boxer and also, if you are betting on them you should know his opponent. I do usually these with my best friend but he's busy now with his job so I don't have anyone to bet with now. That is the reason I knew sports betting online.
I guess a bunch of research is needed to have that needed outcome that you want. With boxing matches, it's hard to predict what is going to happen when both of the fighters have skills. If you really have a bunch of money that you can afford to lose, you can go and bet on the underdog (higher multiplier) and hope for the best. It's fun to do that if you win. Lol.