The Jockey Club has appointed Jim Mullen as its new group chief executive.

Mullen joins The Jockey Club from Reach plc, the largest commercial news publisher in the UK and Ireland, where he has been chief executive since 2019.

He will succeed interim group chief executive, Charlie Boss, who has been in the post since December 2024, following Nevin Truesdale's decision to step down from the role at the end of last year after 11 years.

The Jockey Club runs England's top racecourses, including Cheltenham. It also has an office on Arle Road in the town.

Mullen, 54, will begin his new role with British horseracing's largest commercial organisation and employer on June 1.

A horseracing fan and racehorse owner, Mullen was group chief executive of Ladbrokes Coral Group plc between 2015 and 2018, having previously been managing director of Ladbrokes Digital and chief operating officer of William Hill Online.

He is currently a non-executive board member of Racecourse Media Group, the umbrella organisation responsible for media rights involving 61 racecourses in Britain and Ireland.

Jim Mullen said: "While The Jockey Club will be known to many as one of the most prestigious and established organisations in British sport, it is also a forward-thinking and exciting business with its focus firmly on the future.

"As a lifelong horseracing fan who has spent some of the best days of my life on racecourses, I could not be more proud to join The Jockey Club's passionate and dedicated team through what I hope will be an exciting new chapter."

Baroness Dido Harding,The Jockey Club's senior steward, said: "Jim has a long and distinguished track record of delivering strong growth in the publishing and gambling sectors and is also familiar with the complexities of the British racing industry, its structure and challenges, as well as the very many opportunities we have to broaden our fanbase.

"Jim will bring with him a wealth of experience and expertise, while also being a racing fan at heart who is passionate about promoting the sport and the incredible experiences we are able to offer our customers."

Established in 1750, The Jockey Club runs some of the nation's biggest sporting events, including the Cheltenham Festival, Randox Grand National at Aintree and the Betfred Derby Festival at Epsom Downs. Thousands of racehorses also use The Jockey Club's training centres in Newmarket, Lambourn and Epsom every year, while the organisation also runs The National Stud in Newmarket and the charity, Racing Welfare, which makes help available to everyone in racing.