Milnerton High School’s Erin Crotz, stays ahead of her closest rival, Nelize Barnard of Montana High School, during the girls’ under-17 100m heats at the Twizza Super Schools Series Grand Finale, at the Tuks athletic stadium, in Pretoria, at the weekend. Erin finished 19th overall in the competition that pitted the best of the best from across the country against each other