West Australian Racehorse Trainers are listed in the following Categories Open, B Class, Owner Trainer and Training Partnerships. Metropolitan and Regional Trainers. Goldfields, Esperance and Great Southern Trainers. Mid West, Gascoyne, North West and Kimberly Racehorse Trainers. Albany, Ascot, Belmont, Bunbury, Esperance, Geraldton, Kalgoorlie, Mount Barker, Narrogin, Northam, Pinjarra,York.