Ruling Court won the 2000 Guineas at Newmarket as he held off the fast-finishing Field Of Gold.
The 9-2 shot, trained for owners Godolphin by Charlie Appleby, was the pick of jockey William Buick and proved the right choice.
Stablemate Shadow Of Light led in the closing stages but eventually finished third with another Godolphin runner, Tornado Alert, in fourth.
"This feels great. He was so smooth throughout - he's a special horse and his stamina shone through," said Buick of the victor.