Mariano Alario was born January 27, 1978 in Mar Del Plata, Argentina. As early as he can remember he rode horses. While show jumping was always his passion Mariano learned practically every equestrian discipline, including vaulting, polo, endurance, dressage, three-day eventing, and show jumping. Mariano trained under his Father and became one of the youngest and most successful Grand Prix riders in his home country, turning professional by the age of 15.
In 2002 Mariano followed in his Father’s footsteps and moved to the United States. He worked for Guillermo and Lynn Obligado, at Woodgrove Farms, for the next 3 years and learned the ways of the American horse show world as well as International World Cup and Olympic Show Jumping.

Our Winston Rider

​Mariano Alario

In 2007 Mariano married his wife Nina - herself a well-known rider and trainer on the West Coast - and the decision was made that they would move to Northern California to start their own business.  Now in Petaluma, CA, at Willowbrook Stables, they own Estancia Farms.

For Mariano, having their own barn and helping his clients learn all the angles of this complex sport and achieve their goals is a dream come true. His background in so many disciplines of equestrian sport from so many different places in the world have provided him with a comprehensive knowledge of horsemanship, riding, showing, management, and training, which he is able to pass on every day to his horses and students.

In 2005 Mariano had become well known on the West Coast and was hired by Kilkenny Crest Farms in Bend, Oregon to ride and show their Grand Prix and young horses as well as being the private trainer for their daughter. During Mariano’s time at Kilkenny he had three successful Grand Prix horses and qualified for the 2006 World Cup Finals in Malaysia.