The NGRA is the official Sanctioning Body for professional grudge Racing.

GRUDGE RACING BECAME GRUDGE RACING  BECAUSE LAW ENFORCEMENT CRACKED DOWN ON STREET RACING SO WE TOOK THE WHOLE SHOW TO THE TRACK AND REBRANDED IT AS GRUDGE RACING.  GRUDGE RACING IS DRAG RACING WITH A TWIST... IN GRUDGE WE FOCUS ON "HOW" WE WILL RACE VERSUS DRAG RACING THE FOCUS IS PRIMARILY ON WHAT i WILL BE RACING. SO TO BE OVERLY SIMPLISTIC, GRUDGE IS "HOW" RACING AND DRAG IS "WHAT" RACING.