On his next start, he became the first Derby winner in 20 years to follow up with a victory in the King George VI and Queen Elizabeth Stakes.

[2] Adayar's dam Anna Salai was a high-class racemare who won the Prix de la Grotte and finished second in the Irish 1000 Guineas.

[4] Two weeks later, over the same course and distance, Adayer started at odds of 3/1 for a similar event and recorded his first success as he took the lead three furlongs from the finish and drew away in the closing stages to win "comfortably" by nine lengths.

[5] For his first appearance as a three-year-old, Adayar was stepped up in class and distance for the bet365 Classic Trial over ten furlongs at Sandown Park on 23 April when he started the 8/1 fourth choice in a ten-runner field.

Ridden by James Doyle he started slowly but made steady progress in the last three furlongs (despite losing a shoe) to take second place, half a length behind the William Haggas-trained winner Alenquer.

[6] Buick was in the saddle two weeks later when the colt started 6/5 favourite for the Novibet Derby Trial Stakes over 1+1⁄2 miles at Lingfield Park.

[7] On 5 June Adayar was one of eleven colts to contest the 242nd running of the Derby over 1+1⁄2 miles at Epsom Racecourse, starting at relatively long odds of 16/1.

[8] After his customary poor start, Adayar settled close behind the leading group on the inside rail as Gear Up set a steady pace from Youth Spirit.

"[10] For his next race, Adayar was matched against older horse for the 71st running of the King George VI and Queen Elizabeth Stakes over 1+1⁄2 miles at Ascot Racecourse on 23 July.

Ridden by Buick, he started the 9/4 second favourite behind Love in a five-runner field which also included Mishriff, Lone Eagle (runner-up in the Irish Derby) and Broome (Grand Prix de Saint-Cloud).