Did you know?

Per year. Not sure how many people go to Indy 500 or Daytona, but is have to imagine it is more than the 150k+ that goes to the derby. Or atleast it seems like those have the capacity to hold more
Baseball including minor leagues still doesn't top racing attendance for NASCAR or horses. Professional team sports it's not close though

Also did you know horse racing drug tests horses 25x times more in a year than the NFL, Baseball, and NBA combine

Also did you know professional wrasling has more drug tests than the big three