Etalon Sports Advisors

Vicki Castegren

Vicky discovered her passion for horses at summer camp in Vermont when she was 9 years old. It would be years of riding and equine education that would bring her to realize her dreams of owning and operating a horse farm. 


After graduating college in 1999, Vicky founded Winterhaven Stables, LLC as a sport and sales barn. In 2009 the operation transformed into Hyperion Stud and with that came a whole new mission. That new mission included a deeper focus on the breeding aspect of the industry along with the development of young horses. 


In sport, Vicky has raised and developed horses that have competed at the top level of sport, World Championships, Nations Cups and Olympic Games. In breeding, Hyperion Stud’s operation has produced Champion and Premium foals, States Premium and Elite mares, and approved stallions. To this day Vicky is the only US breeder to have a stallion approved by the Zangersheide Studbook in Belgium. In 2019, her stallion Urthago (v.Uriko/Casall/My Lord Carthago) was approved buy the Holsteiner Verband in Germany.  This puts her as one of the very few American breeders to achieve this distinction in the history of the studbook. 


In the last ten years Vicky has developed Hyperion Stud into one of the top breeding operations in the U.S. With a growing global operation, Vicky hopes that the quality of her breeding operation will continue to grow and inspire the next generation of breeders to be a part of the foundation of equestrian sport. 


Jeff Petska


Jeff Petska has served as Chef de Equipe for Team U.S.A Reining since the inaugural year in 2002 at the FEI World Equestrian Games to present. In that time span, Team USA has won gold at 5 World Equestrian Games, as well as numerous medals at World Championships and Nations Cups. Also, he has served as Chef with Team Gold in the Junior World Championships and Bronze in Young riders. 

He has been involved in training, as well as, breeding top performance Quarter Horses for over 35 years and has worked for some of the top breeders in the business including the famous Pitzer Ranch in Ericson, Nebraska  where they run over 400 broodmares. Also, he has worked for the Rose Ranch/ Carol Rose in Gainesville,TX. This experience and exposure to top breeding and bloodlines, as well as, the influence of some of the greatest horsemen of our time;  has helped to shape his breeding program, as well as, training philosophy. 

Jeff currently operates Petska Performance Horses and Whitesboro Equine Therapy with his wife, Lisa, in Whitesboro, TX. Where they breed, train and manage over 50 head of horses. 

Jeff is also an NRHA and AQHA approved judge and has judged every major NRHA and  AQHA event including the AQHA World Show, Youth World, Select World, NRHA futurity,Congress and NRBC.

Elisa Wallace


Elisa Wallace is a 5 star three-day event rider, YouTuber, and advocate for American Mustang adoption, off the track thoroughbreds, rider safety, and women in sport. She was listed as an alternate for the 2016 US Olympic team, and continues to work toward achieving her life-long dream of representing the USA in international competition. Elisa is passionate about her work with American mustangs, aimed at demonstrating the potential of this misunderstood breed by developing one up to the Advanced level in the sport of three-day eventing.



Phone:   650.380.2995





405 El Camino Real, #234 Menlo Park, CA 94025



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