Australian horse racing has said goodbye to one of its brightest young runners. Riff Rocket, a three time Group 1 winner, passed away following complications from a colic surgery he underwent last week. His trainer, Chris Waller, announced the heartbreaking news on Tuesday afternoon.
Riff Rocket was one of the best horses in Australia last year. The four-year-old took home seven wins from twelve starts, including one in the 2024 Australian Derby.
Riff Rocket, three-time Group 1 winner, dies after surgery complications

Riff Rocket passes away following colic surgery complications.
Highlights
- Riff Rocket passed away on Tuesday.
- Complications from colic surgery caused death, says trainer.
- Riff Rocket won three Group 1 races in his career.
Remarkable career cut short
In his short racing career, Riff Rocket won three Group 1 races, secured eleven top-three finishes, and brought in over $3.5 million in prize money. The son of American Pharoah also won the New South Wales Three-Year-Old of the Year Award and was nominated for the Australian Horse of the Year title for 2023/24.
At just four years old, Riff Rocket looked set to add to this impressive trophy case this season and beyond.
However, a bought with colic cut that all short. Riff Rocket underwent emergency colic surgery last week. Early reports said he recovered well, but late post-surgery complications proved to be too much.
Riff Rocket was a leading Melbourne Cup contender and also a candidate to win many of this year’s derby races, which he dominated in last season.
Even without further honours, we have to say that Riff Rocket had a remarkable career that we know horse racing fans will look fondly back on.
Waller delivers tribute
Riff Rocket’s trainer, Chris Waller, was among the first to deliver the terrible news on Tuesday of the four-year-old’s passing. The veteran trainer delivered a touching tribute to his star sprinter in a statement released shortly after the news got out.
“This is a heartbreaking loss not only for the Kepitis family, but also for the entire team at Chris Waller Racing,” Waller said.
“Riff Rocket will forever hold a special place in our hearts, remembered for the fighting spirit he displayed both on the racetrack and in his final days.
“Our thoughts go out to all those who had the privilege of working with and supporting Riff Rocket throughout his career. He will be deeply missed, but his legacy will continue to inspire us all.”
“Riff Rocket’s career as a three-year-old was nothing short of remarkable,” Waller concluded.
Riff Rocket’s last race was the Group 1 Winx Stakes (1400m) at Randwick on August 24. He finished seventh, while his stablemate Via Sistina won the $1 million contest.
More Horse Racing News

Amelia’s Jewel retired, added to Inglis Chairman’s Sale slate
Amelia Park Racing and Breeding has announced that Amelia’s Jewel has been retired. The mare finished fifth in the Queen of the Turf Stakes at Randwick on Saturday. She won 10 stakes races in her career and a Group 1 race.

Mr Brightside ready for Hong Kong trip after successful Flemington trial
Nine-time Group 1 winner Mr Brightside put in a strong run in a jump-out at Flemington on Friday ahead of his trip to Hong Kong this autumn. The Lindsay Park-trained gelding is set to fly out on Monday to prepare for the Champions Mile.

Steve Wolfe says Rope Them In can go for The Quokka after Roma Cup
Steve Wolfe is already looking past the Roma Cup on Saturday. The trainer says that he expects his gelding Rope Them In to do well in the Roma Cup and that he could contend in The Quokka on April 26th at Ascot.

Waller’s Aeliana dominates Australian Derby field at Randwick
Aeliana has won the 2025 Group 1 Australian Derby at Royal Randwick Racecourse. The Chris Waller-trained filly dominated the competition, beating out Annabel Neasham and Rob Archibald’s Firm Agreement and Ciaron Maher’s Shanwah by more than five lengths.

Jockey Poy handed 13-year ban by Racing Victoria for betting offences
A Racing Victoria judge has handed down a 13-year ban from horse racing to former jockey Michael Poy for his role in an illegal betting scheme. Poy’s betting offences were discovered eleven months ago as a part of a Racing Vic investigation.

'Easiest horse in the world' Dubai Honour stays unbeaten in Australia
After winning the Group 1 Tancred Stakes at Rosehill on Saturday, Dubai Honour and William Haggas are eyeing a Group 1 Queen Elizabeth Stakes win for the seven-year-old gelding. Dubai Honour has not ever lost a Group 1 race in Australia.
I am an avid horse racing enthusiast and punter. Growing up in Randwick, I have been surrounded by racing through stories from the elderly’s past endeavours to the racecourse and owners that are friends of the family. I am also a data-scientist and am fascinated and intrigued by the algorithmic approach to form. I’ve has become more involved with racing over the past few years due to simultaneously delving deeper into the sport and learning how to apply a data driven approach to punting. Beyond Racing, I am an avid NRL fan and MMA fan, the latter of which I have largely applied the same philosophy of methodical, data driven punting towards and found solid success in the MMA space and I continue to track and improve my strategies.