WAPPINGERS FALLS, N.Y. — Richford High School’s Elle Purrier led a dominant Vermont cross-country showing at the Nike Northeast Regionals on Saturday afternoon.The two-time New England champion from Montgomery defended her regional crown with a time of 18 minutes and 9.4 seconds, about 20 seconds faster than her winning clip from a year ago. CVU’s Taylor Spillane took second (18:15.3) while teammate Autumn Eastman placed 10th (18:54.9) in a field of 216 runners.