Not OP, but if I had to guess, the coder just looked for the most favorable 'prop bets' that books use to get the casuals in the door and took advantage of thos

Not OP, but if I had to guess, the coder just looked for the most favorable 'prop bets' that books use to get the casuals in the door and took advantage of those favorable odds. Not really any other way to do it without fixing games.