I think horse racing has become more global in the past 36 years. Before that, it was more an all American event.
New international resources produce great horses. Enter them and one will win.
It is like poker. Big names in Poker don’t win many of the big tournaments. There are too many talented and lucky guns that make it all the way. The final table at the WSOP is populated by nine no names, 21-28 years old.
http://en.wikipedia.org/wiki/Triple_Crown_of_Thoroughbred_Racing
You’d be surprised at how many countries have had their own “Triple Crowns” for years.
Horse racing has been going on since the Bedouins. Thoroughbred horse racing came out of England.