This model works pretty well if you have plenty of empty seats, this could be a problem for fans who come a little bit late to the game.
How do you handle fans that come late to a game?
Last year, I went to a baseball game a few innings late (maybe 2nd inning), how do you determine the time at which point to sell the seat? I would be upset if I paid $64+ bucks per ticket to have my seats sold based on getting to the stadium a little late.
If you are trying to lose weight, I would mainly focus on weight training. I would also add in walking, swimming, running, or biking.
Diet wise: more protein rich food, more fruits and veggies, and cut out high-fructose corn syrup/high sugar products. Eating healthy is just as important as the exercise itself.