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5/29/12, 11:42 AM   #3
Re: So What Ended Clauson's Day At Indy?
Bubzilla
Bubzilla is offline
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Join Date: Jul 2007
Posts: 203
 

They call it the 105% rule.

The leaders were running 218-ish at the time, so all cars had to be turning at least about 207.6 a lap or faster in order to be allowed to continue running.