John Shirreffs, the celebrated American horse trainer who guided Zenyatta to Breeders’ Cup Classic glory and saddled Giacomo for victory in the 2005 Kentucky Derby, has died at the age of 80.
The former US Marine and Vietnam veteran reportedly passed away peacefully in his sleep in California on Thursday.
Throughout his distinguished career, horses under his care accumulated prize money exceeding £43million, cementing his status as one of the sport’s most accomplished figures.
A friend confirmed that Shirreffs had been battling an illness, though he remained actively involved in training until his final days, according to the Racing Post.
The Breeders’ Cup organisation issued a heartfelt statement mourning his passing, describing how his “grace, humility, and skillful horsemanship left an indelible mark on our great sport.”
The tribute highlighted his trio of championship triumphs, including Life Is Sweet’s 2009 Distaff success and Zenyatta’s remarkable double in the 2008 Distaff and historic 2009 Classic.
The organisation praised Shirreffs for his “integrity, patience, and steadfast commitment to the care and development of his horses”.
They noted that he consistently made the Hall of Fame mare available to her admirers, helping broaden racing’s audience and inspire a new generation of enthusiasts worldwide.
John Shirreffs was a celebrated American horse trainer who guided Zenyatta to Breeders’ Cup Classic glory and saddled Giacomo for victory in the 2005 Kentucky Derby
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Jockey Mike Smith, who partnered the legendary Zenyatta throughout her illustrious career, paid tribute to his former colleague.
He said: “The industry lost a giant. It lost a great man. One of the greatest horsemen and a great man.”
The Hall of Fame rider reflected on the unique experience of working with Shirreffs.
The former US Marine and Vietnam veteran reportedly passed away peacefully in his sleep in California on Thursday
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She said: “I think any rider will tell you that when you rode for John, you just felt good about it.
“It’s hard to describe, but he was such a good person, and you knew that everything would be done right for the horse.”
Shirreffs’ approach to training centred on patience and gentleness, allowing each horse to dictate when it was ready to progress.
He actively encouraged his staff to speak with the thoroughbreds, believing this built lasting bonds.
Throughout his distinguished career, horses under his care accumulated prize money exceeding £43 million
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Just months before his death, he explained: “I think kindness is the big key to horses.
“I think it’s good to talk to them, and I always ask the exercise riders, grooms, and hotwalkers to talk to them.”
The trainer had been in Florida only last weekend, examining potential future stars alongside prominent owners Lee and Susan Searing.
He is survived by his wife Dottie, her son David, and his granddaughter Reagan.
