Missed races too much for Dale Jr.
Editor's note: An explanation of Ricky's "Rule of 72" can be found here.
The Rule of 72 tells us that Dale Earnhardt Jr. was already facing an uphill climb to stay in contention in the Chase for the Sprint Cup. Earnhardt currently has 49 points under the Rule of 72 -- that's the sum of his total finishes minus his three bonus points -- and he would have needed an average finish of 2.6 to remain in the hunt entering the last race at Homestead.
So Earnhardt's difficult ...
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