Lambourn Wins Irish Derby Extending Trainer O’Brien’s Record

Aidan O’Brien aims to extend his record 16 Irish Derby victories with five runners in the 2025 Irish Derby at the Curragh, including Lambourn, the Epsom Derby winner and favorite to complete the historic Epsom-Curragh double that his sire Australia achieved in 2014. Lambourn, ridden by Ryan Moore, who has won the Irish Derby twice recently, led throughout his Epsom Derby win and is known for his calm temperament and independence on the track. Other notable contenders include O’Brien’s stablemates Puppet Master, Serious Contender, Tennessee Stud, and Lazy Griff, with Puppet Master now ridden by Wayne Lordan. The Irish Derby is also significant for its integration into the lucrative World Pool betting system and features a competitive undercard with six handicaps. Lambourn’s trainer Joseph O’Brien, who rode Australia to his dual Derby victories, expresses confidence in the horse’s stamina and straightforward racing style, while acknowledging strong competition from Tennessee Stud, who showed improvement after Epsom. Non-O’Brien entrants like Green Impact also add to the field, making the race a highly competitive renewal of the classic event.