Pedigree Query

Ten from twelve runners in Bolshoi Vserosysky Prix (Russian Derby, dirt, dGd1) was born in United States! US bred horse placed in first 7 places.

The winner YUBILEY (Kitten's Joy), bred by Kenneth L. Ramsey & Sarah K. Ramsey, was bought at Keeneland September Yearling Sale for 55.000 US$
http://www.blacktypepedigree.com/horse/Yubiley_USA-485256

The second NEULOVIMYI (Elusive Quality), bred by Triton Farms, was also bougth at Keeneland September Yearling Sale for 50.000 US$
http://www.blacktypepedigree.com/horse/Neulovimyi_USA-481534

The third DISARMED (Unbridled's Song), also from Keeneland Sale, was bought for $150.000.
http://www.blacktypepedigree.com/horse/Disarmed_USA-485257

http://www.youtube.com/watch?v=j7-Un9gkuI4

Interesting, mixed meeting so it seems, trotting and thoroughbred racing, just as in our country. Racing on dirt gives a lot of American bred horses an advantage. Where is this track in Moscow? As I can see, it is in the middle of a town?