Arthur Hancock III, a giant who left an indelible mark on racing history, has passed away
The founder of Stone Farm was 83 years old and belonged to one of the bedrock families of American breeding; he won the Kentucky Derby with Gato Del Sol, bred Risen Star, and was the driving force behind Sunday Silence, a horse who would go on to permanently transform the Japanese industry
PARIS, Kentucky (Special for Turf Diario).— There are men who win big races, others who breed champions, and a select few who help alter the course of an entire industry. Arthur Hancock III managed to do all three. One of the foundational figures in American breeding over recent decades passed away last Friday at his home near Paris, Kentucky, at the age of 83, leaving behind a legacy that is difficult to measure solely through statistics.
Because Hancock was much more than just the illustrious family name he carried. A grandson of Arthur B. Hancock, founder of Claiborne Farm, and son of Arthur B. “Bull” Hancock Jr., who built that farm into one of the 20th century's global pillars, he seemed naturally destined to follow in those exact footsteps. Yet the passing of his father altered those plans: executive management of Claiborne passed to his brother Seth, forcing Arthur to forge his own path.
He initially leased 100 acres and established Stone Farm. Over time, that bold decision would blossom into one of the most remarkable stories in Kentucky breeding. Stone Farm eventually expanded to approximately 2,300 acres in Bourbon County, producing nearly 180 stakes winners, including more than 75 graded stakes victors.
The Derby His Father Dreamed Of
The first major breakthrough arrived with Gato Del Sol (Cougar). Hancock bred and campaigned the colt in partnership with Leone J. Peters, and in 1982, the chestnut rallied from dead last under jockey Eddie Delahoussaye to capture the Kentucky Derby (G1).
It was far more than a victory. Hancock would recall many years later that stepping into that winner’s circle felt almost like an out-of-body experience. His father had spent a lifetime chasing the dream of winning the Derby without success. It was Arthur who finally led the family to the roses.
Yet the journey was far from over. Alongside Peters, he also bred Risen Star (Secretariat), winner of the 1988 Preakness Stakes (G1) and Belmont Stakes (G1), as well as that season's Champion 3-Year-Old Male.
Then came the horse that would carry Hancock's name far beyond the borders of Kentucky.
Sunday Silence Changed Everything
Sunday Silence was bred at Stone Farm, with Hancock forming part of H-G-W Partners, the syndicate that campaigned him on the track.
In 1989, he swept the Kentucky Derby and Preakness Stakes, finished second behind Easy Goer (Alydar) in the Belmont Stakes while chasing the Triple Crown, and met that fierce rival once more in an unforgettable Breeders’ Cup Classic (G1), avenging his defeat to seal Horse of the Year honors.
Yet the influence of Sunday Silence was only just beginning. Hancock ultimately sold his remaining interest in the stallion to Japan's Zenya Yoshida, who already held a 25 percent stake. Installed as a stallion in Japan, Sunday Silencebecame a foundational cornerstone in transforming that nation's industry, going on to top the Japanese champion sire list 13 times.
Few decisions made by an American breeder have ever generated such immense global impact.
The roster of outstanding horses linked to Hancock extended much further.
He co-bred Fusaichi Pegasus (Mr. Prospector), winner of the 2000 Kentucky Derby; bred and sold Bricks and Mortar (Giant's Causeway), the 2019 Horse of the Year; and played a role in the campaigns of Kentucky Oaks (G1) winner Goodbye Halo (Halo) and Menifee (Harlan), winner of the Blue Grass Stakes (G1) and Haskell Invitational(G1).
Stone Farm was also the birthplace of horses with enormous international impact, such as Hawaiian Sound (Hawaii), Rainbow View (Dynaformer), and Air Force Blue (War Front). Furthermore, it was the home of Halo (Hail to Reason), a two-time leading sire in North America and, fittingly, the sire of Sunday Silence.
Hancock also held prominent leadership roles within the industry. He served on the Kentucky Horse Racing Commission, was a director of the Keeneland Association and Fasig-Tipton, and was a member of The Jockey Club. For years, he remained a staunch, vocal advocate for the integrity of the sport.
In 2020, he was named Honored Guest by the Thoroughbred Club of America, following in the footsteps of his grandfather, his father, and his brother Seth.
In 2025 came one of his highest honors: induction into the National Museum of Racing and Hall of Fame as a Pillar of the Turf.
Upon receiving that distinction, he revisited a lesson passed down by his father: to work hard, be honest, and remember that a person has only one reputation, and once lost, it never returns. For Hancock, those were principles that racing itself should never forget.
His life, however, was never confined solely to paddocks and racetracks. He was a Southeastern Conferencechampion in the 100-yard freestyle while studying at Vanderbilt University, wrote books and songs, and had several of his compositions recorded by country music icons like Ray Price and Willie Nelson. He was even slated for posthumous induction into the Kentucky Music Hall of Fame.
His son, Arthur, perhaps captured the simplest definition of such a multifaceted personality: “He was a Renaissance man.”
Yet he immediately added a detail that likely explained better who his father truly was: above all else, he was a farmer. He held a deep love for the land and continued working it well into his 80s.
Hancock is survived by his wife, Staci, and six children. In recent years, his daughter Lynn had assumed much of the daily management of Stone Farm, with her father always nearby as a trusted advisor.
Arthur Hancock III was born into one of the heaviest family names in American racing history. But he never lived in its shadow.
When the path at Claiborne diverged, he built his own. He founded Stone Farm, won the Kentucky Derby his father had dreamed of, bred champions, and found in Sunday Silence a horse capable of changing history thousands of miles from Kentucky. In the end, he succeeded in writing his very own chapter in an extraordinary dynasty.
