I had an idea for a contest format, so I just thought I'd throw it out there and see if there was any interest.

The idea would just be to pick the correct side of the line for as many fights as you can. It could be done like this: I would post no-vig lines for every fight on the card (to make it simpler and encourage betting) and then every bet would be a single-unit fixed-swing bet.

For example I would take book lines like:

Gilbert Melendez: -365 (~78%)
Jorge Masvidal: +285 (~26%)

And turn them into (rounding off a little):

Gilbert Melendez: -300 (75%)
Jorge Masvidal: +300 (25%)

And you could either bet 0.75 on Melendez to win 0.25, or bet 0.25 on Masvidal to win 0.75.

I think it would be interesting, though I realize it wouldn't have the wild gun-slinging nature of the other contests.