I used to run a sports memorabilia company and it was clear that it was rigged. That’s why all the professional leagues are listed as “Sports Entertainment” and not pure “sports”. They want to be able to rigged the outcomes to maximum profit and shareholder value.
There were some vendors inthe industry that always had the right gear ready for sell before big wins and they were the ones with the biggest connections with the league. Seemed like they were always tipped off. Some times our sources would give us data and we would be able to see how the game played out on the predetermined team’s favor.
I never seen anything concrete like a script but it was known in the industry that it was a dog and pony show.