About 50k in the stands and 3300 in the infield.
https://www.sandiegouniontribune.com/sports/national/story/2023-07-23/pocono-raceway-boasts-its-largest-nascar-crowd-in-more-than-a-decade-for-denny-hamlins-win
I went to cota and saturday's attendance was way down where I sat compare to last year. Last year was hot and the temperature was similar so I don't know if it scared people away. On Sunday the crowd looked to be the same or maybe 1 or 2% down.
Went to the Rolex 24 and never seen so many people before for this event. I was stuck for 30 minutes in the garages because I couldn’t move from the people waiting for the gates to open for the grid walk.