Ahmed Ajtebi, who rode Vale of York to an upset win in the Breeders' Cup Juvenile last month at Santa Anita, is riding in Southern California through Jan. 20, he said on Sunday.\nAjtebi, 27, rode Chilecito to a last-place finish in a field of five 2-year-old maiden fillies at Hollywood Park on Sunday, his first mount in California since Breeders' Cup Day.\nHe has one mount on Friday, Deluxe Cat in the sixth race.\nAjtebi, who is represented by jockey's agent Craig O'Bryan, said he will work in the mornings for trainer Eoin Harty, who has horses for Sheikh Mohammed of Dubai. Ajtebi is from Dubai and rides for Sheikh Mohammed's Darley Stable and Godolphin Racing in that country and in Europe.\nAjtebi said he will be in the United States until just before the start of the Dubai Carnival at the newly built Meydan Racecourse. Last March, Ajtebi won two $5 million races on the undercard of the Dubai World Cup.\nBoracio banned for clenbuterol violation\nTrainer Librado Boracio has been suspended 30 days after one of his starters at Del Mar ran in excess of the permitted level of the bronchial dilator clenbuterol.\nBoracio's suspension runs from Dec. 26 through Jan. 24.\nThe Boracio-trained Trail Mix tested positive for an excessive level of the medication after the second race on Aug. 23. Trail Mix finished second in the $73,532 optional claimer over five furlongs on turf.\nAs part of a stipulated agreement with the racing board, Boracio's $3,000 fine has been suspended, provided he does not have any medication violations in Classes 1, 2, or 3 through Dec. 12, 2010. Clenbuterol is listed as a Class 3 violation.\nViolations in Classes 1, 2, or 3 are subject to purse redistribution. On Oct. 28, the Santa Anita stewards ordered that the $14,820 that Trail Mix earned for the second-place finish be redistributed to the original third- through sixth-place finishers - Its in God's Hands, Nericon King, Adebayor, and Oscar the Mayor, who were moved up one position each in the official results.\nO'Neill has string of 30 at Philly Park\nTrainer Doug O'Neill, whose stable has been one of the dominant barns in California, is diversifying his stable and will be competing at Philadelphia Park this winter.\nAs of the weekend, O'Neill said he had 50 horses at Hollywood Park and 30 at Philadelphia Park, the largest operation he has had outside of Southern California.\nO'Neil, 41, said that his lesser horses, primarily claimers, are better served by racing at Philadelphia Park, where purses are greatly enhanced by slot-machine revenue.\n"Most of the ones that went are ones that wouldn't win here," O'Neill said.\nO'Neill's stable, similar to other major stables in Southern California, has suffered in the current economic climate, dropping from more than 100 horses a few years ago to its current level.\n* There is no racing at Hollywood Park on Wednesday, but the track is conducting simulcasting. There are four days of racing this week, from Thursday through Sunday, the final four days of the fall meeting. Santa Anita opens its winter-spring meeting Dec. 26.