Nakatani's attorney, Donald Calabria, called the penalty excessive and said he would seek a court hearing.

In addition to the 30 days, which will run from March 18 through April 28, Nakatani is denied the privilege of riding in designated races during the length of the suspension. A stay of the stewards' decison would allow Nakatani to continue to compete, however, until a hearing is held.

During the running of Saturday's sixth race, Nakatani's mount, Mister Cosmi, racing on the inside, bumped hard with Terrifying, ridden by Javier Santiago, sending the jockey to the ground.

Santiago was uninjured in the fall, but Mister Cosmi was officially disqualified from his eighth-place finish and placed last.

Calabria said that Mister Cosmi suffered a bowed tendon and had surgery. Calabria said Nakatani told the stewards his horse ``bobbled'' and the information about the injury, discovered by a trainer after the horse was claimed, would explain why that happened.

In their official ruling Thursday, the three-member panel of stewards said Nakatani violated California Horse Racing Board Rule No. 1885, which addresses rough riding and wanton acts resulting in a racing accident.

On Wednesday, Nakatani appeared before the stewards with Calabria for nearly 90 minutes. Santiago was also in attendance, along with jockeys Tyler Baze, Mike Smith and Alex Bisono, who rode in the race, as well as Jockeys' Guild official Darrell Haire and Santa Anita jockey representative Luis Jauregui.

Nakatani testified that he was in tight quarters and yelled for room. He said that the first contact came when he tried to get his mount out of traffic. Santiago said, through an interpreter, that Nakatani shouted at him and that he knew he was upset at the initial contact because of the look he saw on Nakatani's face.

Soon after the initial bumping, Mister Cosmi veered out sharply and slammed hard with Terrifying, causing him to stumble and drop Santiago.

Nakatani, 33, immediately filed an appeal for a stay of the stewards' decision with the CHRB, which was denied. T