Opponents and supporters of a bill legalizing slot machines at eight tracks in New York appeared in a New York state appeals court on Tuesday to give arguments in a case challenging the constitutionality of the law. The three-judge panel is expected to rule on the case in February. . . . High Chaparral narrowly edged Falbrav in the final standings among horses for the World Series Racing Championships, a series of 12 Grade 1 or Group 1 races contested in 10 different countries. . . Paul Ryneveld has been hired as Emerald Downs's director of racing, the track announced Wednesday.