Sam Sangster Purchased Group 1 Winner Thesecretadversary
The prominent owner acquired the three-year-old colt following his recent Group 1 successes.
Updated on Sept. 30, 2026 in Equestrian
Sam Sangster has officially acquired the three-year-old colt Thesecretadversary from owners Cayton Park Stud and Sue Magnier. The horse is slated to compete in his first race under Sangster ownership at the Qatar Prix de la Foret.
Why it matters
The acquisition of such a high-performing horse signals a significant move for Sangster in the competitive bloodstock market. This purchase follows his earlier investment in Diego Velazquez, underscoring a broader pattern of adding elite talent to his racing stable.
Thesecretadversary is a three-year-old colt sired by St Mark's Basilica. He secured major victories at the Jersey Stakes at Royal Ascot and the Prix Jean Prat at Deauville prior to this change in ownership.
The players
Sam Sangster
A prominent figure in the thoroughbred racing industry and known bloodstock purchaser.
Thesecretadversary
A three-year-old colt and Group 1 winner sired by St Mark's Basilica.
Cayton Park Stud
A thoroughbred breeding and racing operation that previously held an interest in the colt.
Sue Magnier
A high-profile owner in the international horse racing community who co-owned the horse.
The details
Thesecretadversary will race in Sangster's colors this weekend at Longchamp. Plans have already been confirmed for the colt to remain in active training through the 2027 season, with connections expecting further physical improvement as he matures into a four-year-old.
Timeline
Sam Sangster purchased Diego Velazquez in 2025.
This report was published on September 30, 2026.
Thesecretadversary will compete in the Qatar Prix de la Foret on October 4, 2026.
The colt will continue in training through 2027.
The Big Picture
This acquisition follows the pattern of elite bloodstock investment established by Sangster's purchase of Diego Velazquez in 2025. By securing high-caliber winners, Sangster continues to position his racing interests at the highest level of international competition.
Thesecretadversary will race in Sangster silks at Longchamp on October 4, 2026. The move keeps the three-year-old in elite Group 1 competition, impacting the field outlook for the Qatar Prix de la Foret.
The takeaway
Sangster's decision to maintain the colt in training through 2027 reflects a long-term strategy for the horse's development. Investors and racing enthusiasts should monitor his performance at Longchamp as a benchmark for his potential as a four-year-old.
Further reading
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