You're in a dark room with the ATP match fixer... You can't really see his face, but can barely see the initials TN sewed in gold on his shirt...
You're there to make sure your favourite wins the next slam...
Haggling begins... How much are you willing to put on the table for your favourite to have a 100% chance of winning the next slam?
I would be willing to put 100 euros for a certain Fed victory.
And how much to make sure the guy you hate doesn't win the slam?
I'd put 80 euros for the certainty Nadal doesn't win the slam.
Off of this, we could calculate your hating ratio= money you'd put on your hated player's loss / money you'de put on your favourite's win
Mine: 80/100= 80%