Ricky's Rule of 72
Watching the Chase for the Sprint Cup, you're often left wondering, particularly after a poor finish by a driver: Is he still in the hunt? Does he still have a chance at this year's title?
I wanted a formula just to satisfy my own curiosity on when a driver was in trouble. So for last year's Chase, I established the Rule of 72.
I started with the average finish of each Chase champion. (For example, in 2004, Kurt Busch had an 8.9 average finish. Last year, Tony Stewart ...
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