Orb, winner of this year's Kentucky Derby, has been retired from racing and will enter stud at Claiborne Farm in 2014.

The homebred owned by Stuart S. Janney III and Phipps Stable will stand for an advertised fee of $US25,000 ($A26,400).

Orb had been under consideration to start in the Grade One Cigar Mile at Aqueduct on November 30 but his Hall of Fame trainer, Shug McGaughey, stressed last week those plans were "in pencil".

"The decision to retire Orb was made with mixed emotions," Janney said.

"While I believe he would have had a very successful four-year-old campaign, and Phipps Stable and I would have loved being a part of that, Orb is a wonderful stallion prospect."

Orb propelled himself to the top of the three-year-old division early in the year thanks to a five-race winning streak that started in the fall of his two-year-old season and included victories in the Grade Two Fountain of Youth Stakes and a 2-3/4 length triumph in the Grade One Florida Derby.

The streak culminated with an impressive 2-1/2 length win in the Kentucky Derby that saw the bay colt make a huge sustained run around the far turn and draw off to give his storied connections their first victories in the first leg of the Triple Crown.