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 is currently a “R” dressage judge with the USEF and a retired FEI “C” Para-Equestrian Judge. 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 owns the Grand Prix Oldenburg stallion Rodioso whom she has competed thru Grand Prix and stands for breeding at Derby Farms.

Ms. Pentz lives at Derby Farms in Woodinville, Washington with her husband Peter and together they run the farm and an antique business that specializes in early American furniture. Her husband Peter is an accomplished woodworker and not only specializes in American antiques but also in their restoration and repair. They like to joke that his hobby is horses and her hobby is antiques.

Pam has a busy teaching schedule, specializing in the amateur rider and many of her students have received USDF recognition by receiving Bronze and Silver medals and a junior rider Margaret Odom placed 9th in the nation in 2008 and was a member of the USDF Region 6 Junior Team! Pam’ greatest passion is starting young horses and being a breeder she is hands on from birth. She has a staff of excellent young adult riders who help with the riding and training duties and all work as a team for Derby Farms. Read on to meet some of the team.

All images ©2017, Scarlett, Pentz, Brockman

Katja Waldron - Former Riding Assistant

My wonderful riding assistant Katja Waldron has left us after a fantastic summer earning her USDF Bronze and Silver Medals and is now in the Doctorate program in Psycology at Penn State. She is currently doing some part-time training and teaching in the Penn State Area of Pennsylvania. We wish her the best and hope to see her again soon!

Aubrey Adler - New Riding Assistant

I have a new riding assistant Aubrey Adler who is wonderful with youngsters (horses and people) and her bio will go up soon with photos!

All images ©2017, Pentz, B. Moore

Farrier Services

We have several Farriers who come to Derby Farms on a regular basis.Some very good with trimming of youngsters and others who specialize in shoeing the sporthorse. Contact Pam for more details.

Private Farrier

Clients at Derby Farms are more than welcome to use a farrier of their choice. There is no obligation to use the in-house farrier. Be advised if we must hold a horse or help with that farrier service we will charge a fee of $25.00 per hour.


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 head vet and tends to all the reproductive care as part of the Derby Farms Breeding program. For more information on Rainland Farm check out their website.