Conan O'Brien, Trevor Denman To Call Breeder's Cup Race At Santa Anita Conan O'Brien is in the saddle for the Breeder's Cup, one of the biggest events in thoroughbred racing. The playful late-night comic will call next month's race at Santa Anita with experienced track-announcer Trevor Denman, who told the Associated Press he would advise O'Brien to "try to have fun with it." Conan's never had fun with anything in his life, so this should be good.