The Trainer

Stuart C. Williams

Stuart has been involved in racing since he was a child. His father rode as a jockey, and for many years Stuart hoped to follow in his footsteps and race ride. After growing too tall Stuart worked for several trainers in Newmarket, including Bill O’Gorman, Ron Sheather and Alex Scott, as well as Bart Cummings in Australia, and has even spent time working in France and Norway en route to becoming a trainer.



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Stuart with stable star Quinault

Diomed Stables

He took out a licence in 1993, training from Graham Lodge initially before moving to Trillium Place.

His first winner was Greenback at Lingfield on March 5th 1994, and he has since gone on to train winners at all the Flat racecourses in Britain. Stuart moved to Diomed Stables in 2004, from which point on he has sent out a constant supply of winners reaching well over 1000 winners since becoming a licensed racehorse trainer.

A multiple Group and Stakes winning Racing Yard invites you to visit.

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Stuart has enjoyed success at some of racing’s biggest fixtures – including Glorious Goodwood, Ascot, Derby Day, Cambridgeshire meeting, Ebor meeting and Eclipse day – establishing himself an outstanding reputation for success from inexpensive horses. 

"A conjurer of a trainer. One who can transform an apparently moderate animal into a frequent winner.”

Timeform



The last few years have seen an impressive increase in winners, year on year, for the yard. In 2019 Stuart enjoyed his best year to date with 74 winners, including two Group 2 victoriesKeystroke won the Group 2 Abernant stakes at the Newmarket Craven Meeting, and Breathtaking Look won the Group 2 Sceptre Stakes  at Doncaster. He also had 277 horses placed during the same year, earning nearly £1 MILLION in prize money. 


Red jacket with a star and pink sleeves, brown cap.

Breathtaking Look


Unfortunately due to the Covid Pandemic, 2020 was extremely challenging year. With no racing at the start of the year and uncertainty it looked to be a challenging year for all. However, once racing started again so did the the winners. The highlight of the year was when Breathtaking Look won the Group 3 Prix de Meautry at Deauville in August. Rhythmic Intent also won at the York Dante meeting.


Green sweater with white polka dots.

Desert Dreamer 2nd Duchess Of Cambridge Stakes - Group 2


Team Diomed also enjoyed great success in 2021 with 59 winners, earning nearly £700,000 in prize money. The filly Desert Dreamer made the year a very exciting one as she won on her first start at the Newmarket Craven Meeting. She followed this up with another victory at Newmarket. During 2021 she was runner-up in the Group 2 Duchess of Cambridge Stakes, the Group 3 Princess Margaret Keenland Stakes at Ascot and in two Listed Fillies races at Newmarket. 


Orange and blue checkered top, green sleeves, and green circle.

Quinault wins the Group 3 Al Basti Equiworld Dubai Criterion Stakes at York in June

2022-2024


Quinault won 7 consecutive races in big Handicaps and has won Listed Races.


Pandora's Gift won her listed race at Chelmsford, sent to USA she sold at the Breeders Cup, held that year at Del Mar.




2025 was a fantastic season of 70 winners in GB and 1 win in a Group 3 in Germany; a strike rate of 16% and over 50% winners to horses run. We had group wins at home and abroad, with promising 2yr old winners as well as always having old favourites flying the flag for Diomed Stables. We've had a successful sales season with some exciting new purchases.

But of course, none of this is possible without the support of all our owners whose investment and loyalty make this all possible. Thank You.

We are looking forward to 2026 with great anticipation!

Navy blue jockey silks with a pink cross and pink sleeves with black stars.

Quinault runs 3rd in the QIPCO British Champion Sprint Stakes (Group 1) at Ascot


Short Final - wins a Group 3 at Düsseldorf


Navy blue jockey silks with a pink cross and pink sleeves with black stars.

Short Final - wins the Group 3 105th Großer Preis der Landeshauptstadt Düsseldorf in Germany in October


2026 is off to a great start with the old favourites


Revolutionise 1st winner of the year, the 10yr old and the apprentice

Yellow racing silks with black sleeves and a black chevron, yellow star on the sleeve and cap.

Revolutionise, the 10yr old and the apprentice, at Chelmsford in January 2026