Bob G. Hart, Jr. has been successfully involved in the Arabian horse business for over 40 years. Bob's lifelong involvement with training and showing horses has enabled him to build and own one of the top training facilities in the Arabian horse industry. Vallejo III, Inc. is known for how organized and smooth running it is. Bob's sense of perfectionism has become his trademark.

Bob G. Hart, Jr. has shown in every division in the Arabian breed and now dominating the western pleasure and working cow horse divisions. Bob has won the Purebred Arabian Western Pleasure Open National Championship eight times on eight different horses. This is twice the number that anyone else has won it. Not only this but Bob has won the Half-Arabian Western Pleasure Open, Purebred Arabian Western Pleasure Futurity, Half-Arabian Western Pleasure Futurity, and Purebred Arabian Working Cow Horse National Championships more than any other person. To add to this Bob has also had numerous National Championships in other divisions to include Halter.

As well as exhibiting around the world, Bob G. Hart's expertise in the Arabian horse industry has been called upon as a judge for over 20 years, clinician with five training videos that are a popular item among horse enthusiasts, a committee member with the Arabian Horse Association in a number of areas including liaison to the National Show Commission for the professional community, plus being a delegate at the Arabian Horse Association convention for over 20 years.

Bob G. Hart, Jr. is well respected by his piers as noted by his being honored twice as Western Trainer of the Year at the Arabian Horse Trust's Horseman's Awards. Bob also won the 2003 United States Equestrian of Honor award.