Apples and Oranges in a way.

Knoxville was a 3 day two qualifying night event. At first qualifying was everything. The Saturday night race had a A,B,C feature with dashes. Drivers from all over the country, but many from the midwest.
You would get the best of sprint car and super modified drivers. Race was Saturday night. A big deal to win.

The Hulman Classic seemed to kick off the month of May. USAC had sprint car drivers that raced at Indy, so that made it seem special and a big deal to fans. Run on Saturday afternoon. A big deal to win.

Both races were great. The best in sprint car racing have won both.