Is there an official reason why Runoffs race records are segregated from track records? It would seem to me that a Runoffs race record would carry more weight as a pure record as for the most part run groups are not mixed. At a National or Major a record could be set within mixed groups by a car of the slower class having a record setting run from a tow off a car in the faster class. With the high level of post race scrutiny at the Runoffs and the level of competition, to me Runoffs records are harder to attain.