I don't know for sure, but it's very likely that she had run on dirt before since there still aren't very many tracks with the synthetic turf material due to the $8 to $10 million cost of replacing dirt with Polyturf or it's equivalent. That cost is relatively low compared to the monetary value of the good thoroughbreds who are lost each year because of the accidents, and practically inconsequential as far as I'm concerned when you consider the suffering that the injured horses undergo when this kind of thing happens on a dirt track.
Thoroughbreds are such noble and gallant animals that they deserve the best that we can give them IMHO, but then I'm just a softhearted old horse lover.
I totally agree but I guess I don’t write the paychecks - seems the horses will run their hearts out as is their nature, so the least the sport could do is provide the safest surface...look at the amount of $ that exchanged hands today around the world over one race...