The Jockey Club announced on Monday 3 August that it will leave the Racecourse Association (RCA) at the end of 2026, joining Ascot in walking away from the body that represents almost every racecourse in Britain. The decision lands two days after the RCA published the results of a governance review, and it triggers what The Guardian describes as a constitutional crisis for the British Horseracing Authority (BHA) and its incoming chair, Simon Cox, who formally takes up the role on 1 October.

The Jockey Club is the largest group in British racing. It owns 15 racecourses — including Cheltenham, Aintree, Epsom and Newmarket — plus training grounds, the National Stud, live music venues and the Jockey Club Rooms. The RCA represents all but one of Britain's 59 racecourses. With the Jockey Club and Ascot both heading for the exit, that coverage is about to look very different.

At the heart of the dispute is how racecourses vote. The RCA has operated on a one-track, one-vote system, meaning every course carried the same weight regardless of size. A governance review proposed replacing that with four groups of racecourses, each holding a vote. The Jockey Club's chief executive, Jim Mullen, said the RCA would continue to vote against changes the sport needs — specifically an independent BHA board and substantive reform of the fixture list, the calendar of race meetings that drives the sport's income. The Guardian reports that Mullen issued a fresh ultimatum on 1 August before confirming the departure.

The split also exposes a long-running fault line in the sport. Arena Racing Company (ARC) operates 16 racecourses on a model built around volume — running lots of fixtures to feed the off-course betting market. The Jockey Club, Ascot and the remaining large independents — York, Goodwood, Newbury and Chester — have pushed for a different emphasis, focused on the quality and long-term sustainability of the sport rather than the sheer number of races. Mullen said the Jockey Club intends to work with Ascot and other like-minded partners to establish a new organisation.

The BHA, the sport's governing body, is caught in the middle. The RCA currently nominates two members to the BHA board, a right that depends on the RCA being "the person most representative in Great Britain of the interests of owners of racecourses," according to The Guardian. If the two biggest names in the sport are no longer members, that claim to representation becomes hard to sustain.

For racing fans, the immediate question is what this means for the sport's direction. The Jockey Club's tracks stage the Grand National at Aintree, the Derby at Epsom, the Cheltenham Festival and the Guineas meeting at Newmarket. Ascot runs Royal Ascot. Between them, they host the fixtures that define British racing in the public eye.

Ascot gave notice to leave in May, saying that "sufficient progress has not been made," per Thoroughbred Daily News. The Jockey Club's own statement confirmed it will follow the same exit timeline, departing at the end of 2026.

What happens between now and December will shape how British racing is governed for years. The BHA's new chair inherits a sport divided at the top, with its two most prominent racecourse groups determined to build something new outside the existing structure.