I don't watch as much tape as the others on here and I don't watch every fight card so I'm not as skilled at picking the underdogs but I also look at the percentages and trends of UFC fights. About 70% of the time the favorite wins the fight for example. You do need to win some underdogs too but not as often. Last year I was shocked to see GSP was the underdog against Bisping so I put a lot of money on GSP and it paid off. Also as most know, a knockout is much more likely with heavyweights vs WMMA. So betting under 1.5 rounds is a much bigger risk on WMMA than on the heavyweight men. You can also look at how often a first round stoppage occurs when a fighter is a -600 favorite and use that information to bet. That's risky though because you might have someone like Usman who wins all of his fights but goes to a decision. So you can look at the numbers in addition to the fighters and their styles.