Went to an estate sale here in Ohio and in a box of Nintendo games, was this little black calculator that I opened up and it was called Roxy Roxborough's Sports Predictor. It asks for the following inputs as seen in the picture. I'll post the scores from the Roxy Roxborough Sports predictor and see how it does against the spread, for entertainment purposes only. I paid 50 cents for it! I had to get it!! Let's see how much money it costs me in the long run.