The Little 500 at Indiana University is sorta similar. Coaster bakes and all. So much fun to watch. I wish stadium bicycle racing makes a come back some day. I can only Imaging watching 6 day races and all that.
You're right @pedal4416, Cycle Speedway is still going strong on this side of the pond.
My local club, "Horspath Hammers", has been going strong since 1956.
I've never had a go myself, but it's great to watch.
We have national leagues and cup competitions too!