Our Team

Pamela T. Pentz - Owner/Trainer/Manager:

Since 1980 Pam Pentz has owned and operated Derby Farms, a full service training, boarding and breeding facility with an emphasis on dressage. Pam has ridden most of her life and began her professional career when she graduated from the Potomac Horse Center’s Horsemasters course in 1975 with honors in instruction. She began her teaching and show career at the Evergreen Equestrian Center in Kirkland, Washington in 1976. Klaus Albin provided her with her earliest guidance in dressage. She has continued her dressage training over the years training with Robert Dover, Steffen Peters, Inez Propfe-Credo and Jan Ebeling.

In 1982 Pam was licensed by the United States Equestrian Federation as a dressage judge. She was a “R” dressage judge with the USEF for over 40 years as well as a FEI “C” Para-Equestrian Judge. She retired her USEF dressage card in 2022 and her FEI para card a few years earlier. Pam is also a USDF Bronze and Silver medalist with the United States Dressage Federation. As an active breeder of Oldenburg horses she is a member of the Verband der Züchter des Oldenburger Pferdes better known as the German Oldenburg Verband (GOV) and owned the Grand Prix Oldenburg stallion Rodioso whom she competed thru Grand Prix and who was the foundation sire at Derby Farms. Pam lives at Derby Farms in Woodinville, Washington with her husband Peter and together they run the farm and a small antique business that specializes in early American furniture and repair.

All images ©2017, Scarlett, Pentz, Brockman

Olivia Carter

Olivia graduated from Cornish College of the Arts here in Seattle in 2022 with a degree in design. She has spent the past two years working for the Wing Luke Museum, and is now pivoting back to working with horses full time. She previously worked at Firefly Farms in California, where she worked as a groom, rode client horses, and kept the lesson horses schooled. Firefly Farms specialize in Andalusian horses with an emphasis on dressage.

Olivia has been riding dressage for over ten years. She has an excellent foundation in dressage that she got from her first instructor "a lady from England" who gave her many opportunities to ride upper level horses. Olivia specializes in putting quiet, correct rides on green horses. She is currently working towards her USDF bronze medal. Olivia always puts the welfare of the horse first and has a particular talent for helping tense horses relax. Olivia will be of great help in starting the Oldenburg youngsters coming up from the breeding program here at Derby Farms.


Farrier Services

We have two local farriers that regularly come to the barn. Alistair Nimo, Master Farrier is a native of Scotland, and is a third generation farrier and horseman. Greg Burdett, CJF who is a member of the Washington State Farrier's Association. He is rated Certified Journeyman Farrier. He can be reached at 206-949-2911. Contact Pam for more details.

Private Farrier

Clients at Derby Farms are under no obligation to use the barn farrier and are more than welcome to use a farrier of their choice.


Veterinarian Care

Rainland Farm Equine Clinic is the 24 hour vet service on call for Derby Farms. The clinic is less than a mile from the farm and houses a full surgical unit as well as having three full time vets on call at all times. Dr. Robert Fleck is the clinics founder and adviser. His associate Dr. Susanna Lewis is a key part of the reproductive care of the Derby Farms Breeding program. For more information on Rainland Farm check out their website.