But on Sunday, a racing horse named Arms Runner fell and collided with another horse at the dirt transition during San Simeon Stakes. Arms runner injury was fatal. The other horse, La Sardane, was not injured, according to a statement from Santa Anita Park.
"While this incident happened during the race on a track that independent experts consider to be safe, we are working closely with the California Horse Racing Board (CHRB) to understand if there was anything extra that we could have done to prevent today's tragedy, "according to the park's statement.
"Today's event talks about the bigger problem of catastrophic damage in horse racing that The Stronach Group, together with our industry stakeholders, is working to solve throughout California and across the country," it said.
On Sunday, PETA said that the competition agency, horse owner and coach had not done enough.
"They didn't take all the measures needed to protect the horses," said Kathy Guillermo, senior vice president of PETA in a statement. She pointed to the drug Lasix, a diuretic that is allowed at Santa Anita at lower levels than before and will eventually be phased out.
"All drugs must be banned altogether and the most familiar safest competition area – a synthetic track – must be used," Guillermo said.
She also urged California Governor Gavin Newsom to form an independent panel to investigate training and veterinary medicine in California.