Specs for the $1,000 Grier School Low Hunter Derby.......Formal Attire. Two Rounds, Top 12 Return for 2nd Round. Fences 2'0" and 2'6" (No In & Out). Awards to the Top 10. RIDERS THAT HAVE JUMPED 3'0" OR HIGHER ARE INELIGIBLE TO COMPETE IN THE GRIER SCHOOL LOW HUNTER DERBY.