 From 2009-2012, the Groms played positional derby only (no hitting).In 2012, the junior league established its first full-contact Junior Roller Derby Association (JRDA) travel team, the Gromshells, made up of advanced skaters playing at the highest level of junior competition.Within 5 years, the Gromshells reached their goal of becoming the number-one ranked JRDA team in the all-female division.