They used to have an annual modified race here in KC, (actually they are starting it again this year), that paid 5000 to win and 1000 to start. they had 10 heats both Friday and Saturday with only the winner getting locked in the the Main Saturday night. They had over 100 cars from all over the country for those 11 - 12 car $1000 to win heat races that you didn't have a prayer of winning unless you had a magic pill drawing hand.