Just a simple website that has a calendar which lists all the major dirt tracks races on that day?

Something that would include USAC, WoO, Lucas Oil, etc

This is my favorite site from National Speedway Directory: http://www.speedwaysonline.com/sched...rack_Schedules. Rescheduled races are sometimes not up to date. It's not only open wheel, but a race is a race and these are your bigger events of all major sanctioning bodies.