Rousey fights.

Is anyone betting on these fights? If so what are your choices, I said in a previous post I’m new to sports betting I came across there fights, I just wanna put a 100 down it says I can bet on them all & get a stake shield which I’m not sure how it works! I’m trying to stay away from black jack I’m getting cooked on it lately. Really bad lol. Thank you :) any advice would be helpful? I see some of the fighters have a higher point probability so Ronda is like a 1.15 & I think Canaro is like a 3. Something who would you bet? Sorry if I’m annoying to anyone with my question I’m just a girl trying to learn!