By SARAH PARKER | County Line Managing Editor Challenger Tom Trepes of Kendall is the likely winner of a spot on the Royall School Board. As of about 9:30 p.m. Tuesday, eight of 11 precincts, including Kendall and Elroy, had reported their results. Incumbent Mike Preuss had garnered 133 votes to Trepes’ 218. N-O-W School District…