The victory gave Godolphin Racing its first victory in the Derby as Dee Ex Bee held for second and Roaring Lion ran on for third.
Saxon Warrior, off as a 3-5 favorite on the U.S. tote, was boxed in at the top of the stretch and failed to make up ground late. The son of Deep Impact entered off a May 5 win in the QIPCO 2,000 Guineas at Newmarket.
In that race, Masar was third. We also saw him run in the United States, as he was sixth in last year's Breeders' Cup Juvenile Turf, often noted since then as a loaded race.
Jockey William Buick rallied the Charlie Appleby-trained charge from midpack to win the Epsom Derby.
"It's huge. It's massive," Buick said. "I've had a few rides in the race, and I've come close a couple of times...I'm just very, very happy to be part of it all."
Masar's final time for 1 1/2 miles on turf was 2:34.93.
Masar wins The Derby!June 2, 2018
The St. Ledger runs Saturday, Sept. 15.