Yearling Sale Prep Groom (July 15th - August 31st) Horse Experience Required. Walker Standardbreds is a breeder of Standardbred race horses and is looking for candidates to join our Yearling Sales Prep Team. Job responsibilities. Work with team members to feed, clean barn & turnout yearling’s morning and afternoon. Groom yearlings assigned to your care daily including brush, towel, pick feet and bathe. Lead yearlings in barn area and eventually a...