I googled mtv challenge betting or something like that and came up with the following. Again, I don't care if we just do winner take all with whoever wins the final or use this scoring and do winner take all (most points in this format) or winner and runner-up paid out.
The point system is:
First place in challenge= 25 Points
Last place in challenge= -5 Points
Winning a Dome= 10 Points
Losing a Dome= -10 Points
Surviving an episode= 5 Points
Leave the show for anything other than losing a Dome. This includes giving up in the finals= -25 Points
First place in finals= 100 Points
2nd Place in finals= 50 Points (Must cross finish line)
3rd Place in finals= 15 Points (Must cross finish line)
http://www.theclemreport.com/your-fa...of-the-exes-2/
EDIT: this is probably too much work to ask someone to do.