Nitrogen (foaled March 6, 2022) is an American Grade I winning Thoroughbred racehorse and Eclipse Champion.
In August 2025 Nitrogen won the prestigious Grade I Alabama Stakes at Saratoga Race Course.
Nitrogen is a bay filly bred and owned by D. J. Stable. Her sire is Medaglia d'Oro and her dam is Tiffany Case who was sired by Uncle Mo.
Nitrogen's sire is Medaglia d'Oro who at the age of 26 stands at Godolphin's Darley Stud in Lexington, Kentucky for $75,000 in 2025.
Nitrogen is trained by the Canadian Horse Racing Hall Of Fame trainer Mark E. Casse.
Nitrogen was named Canadian Champion Two-Year-Old Filly by a 114-62 margin over Souper Supreme as a maiden after her two Grade 1 performances in 2024.
Legend: <br/>
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Notes: <br/> An asterisk after the odds means Nitrogen was the post-time favourite.