Known Agenda, winner of this year's Grade 1 Florida Derby, has been retired and will begin his stallion career next season at Spendthrift Farm in Kentucky, the farm, announced Wednesday. Spendthrift indicated that the son of prominent classic sire Curlin is already on the farm and available for inspection by appointment. Known Agenda, a St. Elias Stable homebred trained by Todd Pletcher, will stand for an introductory fee of $10,000 and will be offered through Spendthrift's renowned "Share the Upside" program pioneered by the late farm owner B. Wayne Hughes. Through Share the Upside, breeders can earn a lifetime breeding right to a young stallion after supporting him in his early seasons. Spendthrift stands another young son of Curlin in 2019 Breeders' Cup Classic winner and champion Vino Rosso, who was co-owned by St. Elias. His first foals arrived this year. "Known Agenda ticks an awful lot of boxes, and the Florida Derby has produced a lot of very good sires, especially in recent history,” Ned Toffey, Spendthrift general manager, said in a release. “Known Agenda is one of those rare classic-type Grade 1 winners that is by a Grade 1 winner and out of a Grade 1 winner. He reminded us quite a bit of Vino Rosso, another son of Curlin that we stand that Vinnie [Viola] co-owned and campaigned with Todd Pletcher. If Known Agenda’s foals look anything like what we have seen from Vino Rosso, then the sky’s the limit.” :: DRF BREEDING LIVE: Real-time coverage of breeding and sales Known Agenda won 3 of 8 career starts and earned $641,700. Third in the Grade 2 Remsen Stakes last year as a juvenile, he was an impressive 11-length winner of an allowance race in February at Gulfstream, then captured the Florida Derby by 2 3/4 lengths the following month. He finished ninth in the Kentucky Derby, then fourth in the Belmont Stakes in what proved his career finale. He did not return to the worktab. “Known Agenda reminded me a great deal of Vino Rosso," Pletcher said. "He possessed the qualities of some of the better Curlins we’ve had. He’s a good-sized, athletic, very well-balanced horse. His Florida Derby win was ultra-impressive, and, obviously, that’s been a great race for us when you think of the colts that have gone on to become top sires like Scat Daddy and Constitution.”