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Epsom Derby Trainers

For their dedication to the sport, racehorse trainers who condition the talented thoroughbreds that run in races like those held during The Epsom Derby Festival deserve the highest levels of respect.

It’s likely that we’d still see racehorses grace the grounds of racecourses like Epsom Downs, but if it weren’t for the trainers, the consistency of the racing – the strength, pace, and stamina – would be nowhere near what we have the privilege of watching today thanks to the assistance of skilled and professional racehorse trainers.

While there are many experienced racehorse trainers who deserve special consideration, the following are only a few of those who have conditioned some of the favourites that will be competing in The Epsom Derby Stakes Flat Race 2021:

Epsom Derby 2021 Trainers

Here are six of the trainers that have trained horses that are amongst the favourites to take the first place prize in the 2021 edition of The Derby:

Aidan O’Brien 

Aidan O’Brien is one of the most decorated racehorse trainers in Irish flat racing.

Over the last five Irish flat racing seasons, Aidan O’Brien has earned over €26.4 million in prize money, winning 531 out of the 2,522 races his horses have participated in with a 21% win ratio.

Aidan O’Brien has a number of horses that are likely to compete in the next edition of The Derby at Epsom Downs Racecourse, including the current 15/8 priced ante-post race favourite Bolshoi Ballet.

Amongst Aidan O’Brien’s hundreds of major wins are eight wins in The Epsom Derby, with the most recent being his second consecutive win in 2020 with 25/1 priced outsider Serpentine.

Charlie Appleby

Based in Newmarket near the racecourse in Suffolk, Charlie Appleby has an immense amount of experience in British flat racing.

Over the last five Great British flat racing seasons, Charlie Appleby has earned over £10 million in prize funds, winning 378 out of the 1,363 races the horses he has trained have competed in with an impressive win ratio of 28%.

Charlie Appleby has a few horses that have a fantastic chance of taking home the first-place prize in the 2021 edition of The Epsom Derby.

Charlie Appleby already has one Derby win in his portfolio after training 16/1 outsider Masar to glory in 2018.

William Haggas

With a consistent set of runners throughout his training career, William Haggas has achieved a 52% RTF over the last several years. That’s over half his runners running to form.

Over the last five Great British flat racing seasons, William Haggas has earned over £11.3 million in prize funds, winning 595 out of the 2,645 races the horses he has trained have competed in with a win ratio of 22%.

William Haggas has a number of major wins under his belt, including a win in The Derby with Shaamit in 1996 and a win in The Oaks with Dancing Rain in 2011.

Jessica Harrington

Jessica Harrington has had a commendable race record in the past five seasons of Irish flat racing, winning 245 of the 2,121 races the horses she has trained have competed in.

Thanks to these wins and placement position finishes, Jessica Harrington has earned nearly seven million euros in those five years and achieved a 12% win ratio.

Jessica Harrington specialises in National Hunt jump racing but has still managed wins in many prestigious flat races across Ireland.

Roger Varian

With a 20% win ratio in the last five seasons of British flat racing, Roger Varian has won 487 of the 2,493 races the horses he has trained have contested.

Thanks to this fantastic racing record in British flat racing, Roger Varian has earned over £9,000,000 in those five years, with a decent portion of that figure coming thanks to his two wins in the Coronation Cup during The Derby Festival with horses Postponed and Defoe.

Andrew Balding

Since Andrew Balding attained his training license in 2003 he has made a huge impact on British flat racing.

In the past five British flat racing seasons, Andrew Balding has trained an impressive 3,261 runners with 494 of those winning their races. This 15% win ratio, alongside the many placing competitors, has earned £11.6 million in prize money.

Andrew Balding has yet to win The Derby but does have a victory in The Oaks thanks to 10/1 priced outsider Casual Look on Day One of The Epsom Derby Festival in 2003.

Previous Winners

Here are the previous 3 winners of The Epsom Derby Stakes Flat Race, including their odds, closest competitors and race stats:


At Epsom Downs Racecourse in July 2020, a rescheduled Derby Festival took place with a smaller revised itinerary. This edition of The Derby Stakes was won by 25/1 outsider Serpentine, ridden by jockey Emmet McNamara and trained by Aidan O’Brien.

50/1 priced longer outsider Khalifa Sat finished five and a half lengths behind Serpentine in second place, followed by 66/1 priced longer outsider Amhran Na Bhfiann in third place and 5/2 priced race favourite Kameko in fourth.


At The Epsom Derby Festival 2019 at Epsom Downs Racecourse, The Derby Stakes Flat Race was won by 13/2 priced Anthony Van Dyck, ridden by jockey Seamie Heffernan and trained by Aidan O’Brien.

10/1 priced Madhmoon finished just half a length behind Anthony Van Dyck in second place, followed by 20/1 priced outsider Japan in third place and 4/1 priced second-favourite Broome in fourth.


Ridden by jockey William Buick and trained by Charlie Appleby, 16/1 priced outsider Masar won The Epsom Derby during The Epsom Derby Festival at Epsom Downs Racecourse in 2018.

20/1 priced longer outsider Dee Ex Bee finished a length and a half behind Masar in second place, followed by 6/1 priced Roaring Lion in third place and 4/5 race favourite Saxon Warrior in fourth.