He has trained over 3,000 winners worldwide, including victories in the Breeders' Cup Classic, the Derby, the Arc, the King George and the Eclipse.

Gosden has trained the winners of over 100 Group 1 races in the United States, Europe, the Middle East and Asia.

During his time with both men, they won a number of prestigious races including the Derby, the Oaks and the St. Leger Stakes.

[4] In 1984, he trained Royal Heroine, a turf mare, winning the Gamely Stakes and the inaugural Breeders' Cup Mile.

In 1992, he won the Irish St. Leger, Grosser Preis von Baden and Gran Premio di Milano with Mashaallah, the Prix de la Forêt with Wolfhound, and more than 100 other races.

Throughout the mid-1990s, Gosden formed a successful partnership with Frankie Dettori, winning hundreds of races with the Italian jockey.

Later in the season, he won both Group One races held at Ascot with Observatory in Queen Elizabeth II Stakes and Crystal Music in the Fillies' Mile.

One of his first major victories came when Zenda beat Firth of Lorne in the prestigious Poule d'Essai des Pouliches in France.

"I did a wild thing three months ago when I entered Malhub for this race", Gosden said, "I felt a mile was too far and decided to drop him back in distance and give him one smart entry over a shorter trip".

"She has been going well at home and we were expecting a big run", Gosden said afterwards, "It's a wonderful advertisement for keeping a five-year-old in training".

He also won with at Chester with Treble Heights for football player Michael Owen, and the Solario Stakes with Foss Way.

Gosden then won the King Edward VII Stakes at Royal Ascot at York with Plea Bargain.

"The move to Manton was challenging, but I was pleased to win the 1,000 Guineas with Lahan within four months of being there", said Gosden,"She was our 100th Group winner in Europe".

Gosden then won two major races in the same day, the Celebration Mile with Raven's Pass the Great Voltigeur Stakes with Centennial.

He then won the Prix Minerve-Shadwell in France with Dar Re Mi, even though the ground was considered to reduce her prospects, "she would appreciate good going the most" Gosden said.

He then had another stunning day at Ascot, winning the showpiece Queen Elizabeth II Stakes with Raven's Pass and the Fillies' Mile with Rainbow View, completing the double for the second time.

Winning the Timform Million with Donativum allowed Gosden to supplement the two-year-old for the Breeders' Cup Juvenile Turf at Santa Anita.

"I really do like these sales races", Gosden said "and Donativum's defeat of Crowed House last year turned out to be a cracker".

"It was a fabulous finish", said Gosden, "Twice Over and Pressing took the pace to test Paco Boy's stamina and it played into our favour.

Gosden was happy with the performance, "She did it well today and, similar to some good fillies I’ve had before, she has just taken some time to come to herself this season".

In November, Gosden returned to more success at Santa Anita, winning the Breeders' Cup Juvenile Turf with Pounced, for the second time in as many years.

However, Gosden is widely viewed as a good judge, the only other rider he has ever retained (apart from Buick) is Frankie Dettori.

Almost immediately, Gosden's choice was proved correct as Buick gave Dar Re Mi a fantastic ride to win the prestigious Dubai Sheema Classic.

Gosden continued his success, winning the Cheshire Oaks with Gertrude Bell and the Huxley Stakes with Debussy.

[15] Soon after, he returned to Ascot with Nathaniel to win one of the world's most prestigious races, the King George VI and Queen Elizabeth Stakes.

[16] Gosden also won the Summer Double First Leg International with Bronze Prince, and the Canisbay Bloodstock Handicap with Aiken.

Gosden won his fourth St. Leger and second with William Buick as Masked Marvel very impressively beat Brown Panther.

Gosden then enjoyed further success when Elusive Kate won the very prestigious Prix Marcel Boussac at Longchamp, beating a fantastic field including Fire Lily and Zantenda.

He then won three races in quick succession for Serena Rothschild, the Coral Challenge with Trade Commissioner, the Lancashire Oaks with Great Heavens and The Eclipse with Nathaniel.

Gosden was appointed Officer of the Order of the British Empire (OBE) in the 2017 New Year Honours for services to horseracing and training.