1. Overview
Colm O'Donoghue (born 13 November 1980) is an Irish jockey who has achieved significant success in horse racing across various international circuits. For much of his career, he was primarily based at the renowned Ballydoyle racing stables in Rosegreen, Cashel, County Tipperary, developing a long-standing professional relationship with celebrated trainer Aidan O'Brien. O'Donoghue's career highlights include multiple Group One victories, notably the Irish Derby and several major international races in Europe, the United States, and Asia. He is recognized for his successful partnerships with top horses like Treasure Beach and Alpha Centauri, demonstrating a consistent presence at the highest levels of the sport.
2. Early Life and Career Start

Colm O'Donoghue began his journey in professional horse racing at a young age. His determination to enter the sport was evident even in his final days as a schoolboy.
2.1. Apprenticeship and First Win
In 1996, O'Donoghue proactively contacted prominent trainer Aidan O'Brien to inquire about an apprenticeship. O'Brien agreed, marking the beginning of a professional association that would span two decades. O'Donoghue made his professional debut as a jockey in 1997. His first victory came on 24 June 1997, when he rode the horse My Lorraine to a win at Sligo Racecourse. Less than a week later, he secured another notable win with Theano in the valuable John Roarty Memorial Scurry Handicap at the Curragh Racecourse on Irish Derby Day. This was particularly significant as it was one of the season's most competitive handicaps, underscoring his early promise. As his reputation grew, other trainers began to regularly seek his services. In October 1999, he partnered Zelden to success in the Derrinstown Stud Apprentice Handicap final, also held at the Curragh.
3. Career Highlights
Colm O'Donoghue's career has been marked by a consistent ascent through the ranks of international horse racing, characterized by key collaborations, significant international activities, and numerous milestone achievements.
3.1. Collaborations and International Activities
Throughout his career, O'Donoghue has ridden for many leading trainers and owners across the globe. In Ireland, he collaborated extensively with Aidan O'Brien, and also worked with Jessica Harrington, Jim Bolger, Dermot Weld, and John Oxx. His international engagements have seen him ride for notable American trainers such as Bobby Frankel, Neil Drysdale, Bob Baffert, and Todd Pletcher. He also ventured to Australia, riding for Lee Freedman, and established connections in India with Dr MAM Ramaswamy, Subaiah Ganapathy, and Vijay Mallya. In Japan, he rode for Katsuhiko Sumii and obtained a short-term jockey license in 2011, allowing him to compete in races under the JRA. Furthermore, O'Donoghue built a strong relationship with Godolphin, riding for trainer Charlie Appleby at all eight Dubai World Cup Carnival meetings in 2019, showcasing his presence on the global racing stage.
3.2. Major Achievements and Milestones
O'Donoghue secured his first Group One victory in 2002, riding Spartacus to win the Phoenix Stakes at Curragh Racecourse. This was followed by a second Group One success in 2007, when he rode Astronomer Royal to win the Poule d'Essai des Poulains in France. Both of these early Group One wins were achieved aboard horses trained by Aidan O'Brien. In 2001, O'Donoghue achieved 23 wins. Beyond Group One successes, he also secured victories in numerous other significant races in Ireland, including the Noblesse Stakes, Greenlands Stakes, Round Tower Stakes, Debutante Stakes, the Ulster Derby, the Irish Cesarewich, and the McDonagh Handicap at the Galway Festival.
In 2011, O'Donoghue partnered with the Aidan O'Brien-trained Treasure Beach in The Derby, where they finished second by a head in a highly competitive race. His performance on Treasure Beach was lauded by veteran jockey Mick Kinane as the best ride of the race. Shortly after, he successfully rode Treasure Beach to win the Irish Derby at the Curragh Racecourse, securing a significant classic victory. Two months later, in August 2011, he was a member of the victorious Irish Jockeys' team at the Shergar Cup at Ascot Racecourse. During this event, he won the 12-furlong Shergar Cup Classic race on Parlour Games, marking his first ride for Godolphin. His achievements in 2011 were further recognized in November when he was nominated for an Outstanding Achievement Award by Horse Racing Ireland.
O'Donoghue's international success continued into 2012. In January, he was invited to represent Ireland in the Meydan Masters International jockeys challenge in Dubai. In March, he triumphed in the UAE Derby on Daddy Long Legs during the Dubai Carnival meeting. He further extended his reach in August 2012 by winning the inaugural American St. Leger at the Arlington Million meeting at Arlington Park in Arlington Heights, Illinois, riding Jakkalberry for Newmarket-based trainer Marco Botti. In 2012, he also won the Canadian International with Joshua Tree.
From 2016, O'Donoghue took on the role of first jockey on the flat for dual-purpose trainer Jessica Harrington, initially balancing this position with his existing commitments at Ballydoyle. That same year, he rode his first Royal Ascot winner, Sword fighter, for Aidan O'Brien in the Queen's Vase. A pivotal period in his career came in 2018 with his highly successful partnership with the Harrington-trained Alpha Centauri. Together, they secured four prestigious Group One victories: the Irish 1,000 Guineas, the Coronation Stakes, the Falmouth Stakes, and the Prix Jacques Le Marois. In November 2018, he achieved his first JRA graded stakes victory, winning the Copa Republica Argentina on Perform A Promise.
3.3. Recent Career Changes
In February 2019, it was announced that Shane Foley would succeed Colm O'Donoghue as the stable jockey for Jessica Harrington's flat team. Following this transition, by March 2019, it was confirmed that O'Donoghue would be riding for the newly formed training partnership of John Oxx and Patrick Prendergast, continuing his career with new affiliations.
4. Major Wins
Colm O'Donoghue has secured numerous major victories across various countries throughout his distinguished career.
4.1. Ireland
- Irish 1,000 Guineas - (1) - Alpha Centauri (2018)
- Irish Derby - (1) - Treasure Beach (2011)
- Irish Oaks - (1) - Bracelet (2014)
- Phoenix Stakes - (1) - Spartacus (2002)
4.2. Great Britain
- Coronation Stakes - (1) - Alpha Centauri (2018)
- Epsom Oaks - (1) - Qualify (2015)
- Falmouth Stakes - (1) - Alpha Centauri (2018)
- Yorkshire Oaks - (1) - Seventh Heaven (2016)
4.3. United States
- Secretariat Stakes - (1) - Treasure Beach (2011)
- Queen Elizabeth II Challenge Cup Stakes - (1) - Together (2011)
4.4. France
- Critérium International - (1) - Jan Vermeer (2009)
- Poule d'Essai des Poulains - (1) - Astronomer Royal (2007)
- Prix Jacques Le Marois - (1) - Alpha Centauri (2018)
4.5. Japan
- Copa Republica Argentina - (1) - Perform A Promise (2018)
4.6. India
- McDowell's Indian Derby - (1) - Diabolical (2007)
- Indian 1,000 Guineas - (2) - Desert Lightning (2005), Sweeping Success (2007)
- Indian Oaks - (1) - Sweeping Success (2008)
- Indian 2,000 Guineas - (1) - Burbon King (2007)
- Royal Western Indian Turf Invitation Cup - (1) - Southern Empire (2007)
- Ever Ready Calcutta Derby - (1) - Moon Forrest (2007)
- Calcutta 2,000 Guineas - (1) - Star Team (2007)
- Calcutta Oaks - (1) - Classic Sky (2007)
- Bangalore 1,000 Guineas - (1) - Star Luminary (2006)
- Poonawalla Bangalore Derby - (3) - Star Luminary (2007)
- The Colts Championship Stakes (Gr.1) - (1) - Phoenix Tiger (2015)
4.7. United Arab Emirates
- UAE Derby - (1) - Daddy Long Legs (2012)
4.8. Canada
- Canadian International - (1) - Joshua Tree (2012)