Fifty years ago, Pro-class stars were also being made at divisional events
Fifty years ago, there were only seven national events on the schedule, but fans across the country saw great action on the divisional level where Top Fuel, Funny Car, and Pro Stoc
https://www.nhra.com/news/2024/fifty-years-ago-pro-class-stars-were-also-being-made-divisional-events