Fifth-ranked Seneca will take a 2-3 record into its opening contest. The Indians opened their season with two straight victories, but since then have dropped three straight — Mc-Auley, 81-57; Granby, 60-49, and Jasper, 54-52.Nevada’s Tigers enter their first-round game with a 3-2 record over-all. Carthage sports a 1-6 record, while Wheaton owns a 4-8 record.Officials for the tournament will be Bill McDougel, Hollis Cox, Dewey Bratton and Warren Pendleton, with Harold Measel and Charles Land as alternates.Admission will be 25 cents for students and 75 cents for adults, except for the semifinals and finals when admission will be 25 cents for students and $1 for adults.