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Darlington, S.C. • NASCAR has postponed all track activity Friday at Darlington Raceway in anticipation of Hermine bringing inclement weather to the South Carolina track.

Hermine on Thursday strengthened into a hurricane, with maximum sustained winds increasing to near 75 mph.

Both the Sprint Cup Series and the Xfinity Series had scheduled practices on Friday. Both series were not due hold qualifications for their respective races until Saturday.

The Xfinity Series race is scheduled for Saturday afternoon, while the Cup race is scheduled for Sunday evening.