But would obviously require work...
Have a feature in your profile or wherever that lets you pick the winners of each fight card. Obviously mods would have to set these up in advance along with an end-time after which you can't change your picks.
Then you could have a thing that shows your right-wrong ratio, your picking history, etc, all linked from your profile.
Also, a thing that would show the user-wide picks, i.e. the total mma.tv consensus on each fight (and right-wrong ratios, etc).