Keeneland to Sell Nitrogen's Dam in January Sale

Tiffany Case , dam of top-ranked 3-year-old filly Nitrogen , will be offered in foal to Not This Time   at the 2026 Keeneland January Horses of All Ages Sale on Monday, Jan. 12. Taylor Made Sales Agency, agent, is consigning the 12-year-old mare, a winning stakes-placed daughter of Uncle Mo whose two foals to race are both stakes winners.

"Tiffany Case transcends mere investment value—she's young, proven and in foal to arguably the top stallion in the country," said Jonathan Green, general manager of owner D.J. Stable. "She can be a cornerstone for any elite breeding program."

Bred in Kentucky by JSM Equine and Greathouse Horse Property, Tiffany Case is a half-sister to Grade 3 winner and Grade 1-placed Talk Veuve to Me. She was acquired by Leonard and Jon Green's D.J. Stable at the 2019 Keeneland November Breeding Stock Sale while carrying her first foal by Violence. The resulting filly is the stakes-winning and grade 2-placed Love to Shop . 

Tiffany Case's second foal to race is Nitrogen , campaigned with notable success by D.J. Stable. The daughter of Medaglia d'Oro  was Canada's champion 2-year-old filly last year after running third in the Breeders' Cup Juvenile Fillies Turf (G1T). She has six victories and three seconds in nine starts in 2025 to push her career earnings past $2 million.

"I've said many times that Nitrogen is the best-looking Medaglia d'Oro filly I have seen since (Hall of Famer) Songbird," Taylor Made President and CEO Mark Taylor said. "Tiffany Case is the rare type of mare who is a proven producer of elite grade 1 talent and stunning looks in her foals."

Earlier this season, Nitrogen established herself as the best sophomore turf filly in North America before showcasing her versatile talent on the dirt at Saratoga. There she coasted to a 17-length win in the Wonder Again (G3), which was rained off the turf. Nitrogen next scored a 1 1/2-length victory in the historic Alabama Stakes (G1) against top 3-year-old fillies, including Kentucky Oaks (G1) winner Good Cheer  and multiple grade 1 winner La Cara .

Nitrogen remained on the dirt and finished second to older rivals in her two remaining races, the Spinster Stakes (G1) at Keeneland and the Breeders' Cup Distaff (G1) at Del Mar.

"With Nitrogen firmly in the conversation for this year's champion 3-year-old filly honors, Tiffany Case represents a rare opportunity to add a proven, top-level producer to any broodmare band," Keeneland vice president of Sales Tony Lacy said. "Her produce record—paired with a sought-after Not This Time cover—underscores the quality and consistency she brings. She is a clear standout in any sale, and we expect her to draw serious attention from domestic and international buyers who value pedigree, performance and long-term potential." 

D.J. Stable has amassed more than 2,600 wins and cultivated elite runners over four decades. In addition to Nitrogen, D.J. Stable has campaigned Eclipse Award winners Wonder Wheel  and Jaywalk . 

Tiffany Case has a Gun Runner   yearling filly named Sniper that D.J. Stable has retained to race.

The online catalog for the January Sale is scheduled to be available Dec. 9.