His name was Halo, with all that it implies. But the nearly black stallion was anything but angelic. As a yearling, he objected so strenuously to the scenario in the walking ring that he flipped outside the sale pavilion. During his racing career, he would eject his exercise rider and take solo turns around the training track in Aiken, S.C., and occasionally take unscheduled trips to romance the fillies at neighboring barns. As a stallion, he had a reputation for being aggressive and territorial, and required a muzzle to be handled.

Over its storied history since being founded in 1937 by Leslie Combs II – who named the property after the 1879 Belmont Stakes winner bred by his great-grandfather – Spendthrift Farm has been an industry leader as a stallion operation. The farm syndicated back-to-back Triple Crown winners Seattle Slew and Affirmed in the 1970s and also has been home to such standouts as Raise a Native, Nashua, Swaps, Gallant Man, Foolish Pleasure, Majestic Prince, and more.

Uncle Mo shattered records as he led the freshman sire list in 2015, and is now reaping some of the results of that early success. Uncle Mo's current juveniles are those conceived in spring 2016 following the success of his first runners, and he has ridden that wave to a solid third on the North American juvenile sire list, illustrated when his daughters Bast and Donna Veloce swept the exacta in the Grade 1 Starlet Stakes on Saturday at Los Alamitos.

Unaided, the dam of Breeders' Cup Mile winner Uni, was purchased by Peter Brant's White Birch Farm for $1,382,661 in U.S. funds over the weekend at the Arqana December breeding stock sale in France.

British-born Unaided, a 10-year-old Dansili mare, was unplaced in eight starts while racing for Japanese connections. She was shipped to the U.S. to be bred to internationally-successful sire More Than Ready, then sold for $230,000 at the 2013 Keeneland November breeding stock sale. Her resulting first foal, Uni, was born in Great Britain for Haras D'Etreham.

The superstar Australian mare Winx has been confirmed in foal to I Am Invincible and is expected to deliver her first foal in the second half of 2020, spring in the Southern Hemisphere.

Winx, by Street Cry, was retired in April riding a streak of 33 consecutive victories, including 25 Group 1 victories. That included an unprecedented four editions of the prestigious Cox Plate.

Delta’s Royalty, the only foal out of late Hall of Fame racemare Royal Delta, made her debut a winning one Thursday at Kempton in England.

Delta’s Royalty, a 2-year-old Galileo filly, won by three-quarters of a length going a mile on the all-weather surface. She is trained by Jack Varian for breeder and owner Benjamin Leon Jr.’s Besilu Stables.

As the racing season winds down, new stallion prospects are shipping to their respective farms, settling in to their new homes and routines, being inspected by breeders, and preparing for the launch of their second careers when the Northern Hemisphere breeding season begins in February.

Kentucky Derby winner Super Saver and freshman sire Daredevil are the latest stallions heading overseas to Turkey, which has been bullish in the North American bloodstock market this fall. The two former WinStar Farm stallions have been acquired by the Turkish Jockey Club to stand overseas beginning with the 2020 breeding season, with a provision allowing for a return to the United States upon completion of their careers.

Tom’s d’Etat, one of the last significant sons of the late leading sire Smart Strike, stamped himself as a major stallion prospect upon his eventual retirement by adding a Grade 1 victory to his résumé in the Clark at Churchill Downs last Friday. Not only is he by Smart Strike, he is from the immediate female family of another prominent sire.

Perennial leading sire Tapit is well on his way to building his lasting legacy – already. The Gainesway stallion’s oldest second-generation progeny, produced by his sons or daughters, are 8, placing him relatively early on the curve in this regard. But he is already the grandsire of champion Monomoy Girl, via his son Tapizar, and has sons Constitution and Tapiture among this year’s top 10 freshman sires.